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35 vulnerabilities by fastify
CVE-2026-92081 (GCVE-0-2026-92081)
Vulnerability from cvelistv5 – Published: 2026-09-16 08:52 – Updated: 2026-09-16 14:00
VLAI
EPSS
VEX
Title
fastify vulnerable to Denial of Service via unhandled exception on HTTP/2 trailer responses
Summary
fastify is a fast and low-overhead web framework for Node.js. In versions before 5.12.5, when a route registers a response trailer via reply.trailer() and is served over HTTP/2, fastify unconditionally sets the Transfer-Encoding: chunked header, which is forbidden on HTTP/2, so Node.js throws while serializing the response headers. The exception is not caught and becomes an uncaughtException, so a single unauthenticated HTTP/2 request to any route that uses trailers crashes the server process and drops all in-flight requests, and it can be repeated on every restart. The issue is fixed in fastify 5.12.5, and users should upgrade to 5.12.5 or later. As a workaround, avoid registering response trailers with reply.trailer() on routes served over HTTP/2 until upgrading.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 14:00 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
Impacted products
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CVE-2026-84428 (GCVE-0-2026-84428)
Vulnerability from cvelistv5 – Published: 2026-09-04 10:24 – Updated: 2026-09-04 16:06
VLAI
EPSS
VEX
Title
fastify vulnerable to header validation bypass via incomplete schema case normalization
Summary
fastify versions before 5.12.2 implement the case-insensitive nature of HTTP header names by lowercasing names in a route's header schema before compiling it, but the transformation is incomplete: it lowercases the properties keys and the root-level required array, and does not lowercase the trigger and dependent names inside the JSON Schema Draft 7 dependencies keyword. Because Node stores request header names in lowercase, a canonical-case dependency such as requiring an authentication header whenever a privileged-mode header is present never matches, and the presence assertion is silently skipped. An unauthenticated remote client can therefore send the header that activates a privileged branch while omitting the header the dependency was meant to require, bypassing the conditional check. Users should upgrade to fastify 5.12.2 or later.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 16:04 UTC
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
Impacted products
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CVE-2026-84469 (GCVE-0-2026-84469)
Vulnerability from cvelistv5 – Published: 2026-09-04 09:59 – Updated: 2026-09-04 19:34
VLAI
EPSS
VEX
Title
fastify vulnerable to request validation bypass via skipped boolean false schemas
Summary
fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to a route's body, querystring, params, or headers schema to deny all input, fastify treats it as a missing schema, compiles no validator, and runs the route handler on any request. An unauthenticated remote client can therefore reach a handler that a valid deny-all schema was intended to make unreachable, a complete validation bypass that can lead to unauthorized state changes or execution of disabled operations. Users should upgrade to fastify 5.12.2 or later.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 19:34 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
Impacted products
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CVE-2026-76169 (GCVE-0-2026-76169)
Vulnerability from cvelistv5 – Published: 2026-09-04 09:51 – Updated: 2026-09-04 16:20
VLAI
EPSS
VEX
Title
fastify vulnerable to authentication bypass via malformed URLs reaching encapsulated not-found handlers
Summary
fastify versions >= 4.0.0 and before 5.12.2 can route a malformed URL sent under one plugin prefix to the custom not-found handler of a different sibling plugin, and invoke it without the preHandler hook declared for that handler. The internal not-found router for encapsulated handlers dispatches malformed paths through a single shared handler pointer before URL decoding, ignoring the prefix and skipping the selected handler's normal lifecycle. An unauthenticated attacker can therefore reach an authentication-protected private fallback through an unrelated public prefix and read its full response, bypassing the authentication hook and breaking prefix encapsulation. Users should upgrade to fastify 5.12.2 or later.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 16:18 UTC
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
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CVE-2026-84504 (GCVE-0-2026-84504)
Vulnerability from cvelistv5 – Published: 2026-09-04 09:40 – Updated: 2026-09-04 16:34
VLAI
EPSS
VEX
Title
fastify vulnerable to request body replacement via an async validation result collision
Summary
fastify versions before 5.12.2 treat the object resolved by a successful Ajv async validator as the value result protocol used by custom validator compilers. If a request that passes its route schema contains a property named value at the root, fastify replaces the entire request body with that property's value before the handler runs, so the handler receives a different object than the one that satisfied the schema. An authenticated low-privilege caller can use this to make nested data replace the validated body and trigger an operation the route schema did not authorize, leading to unauthorized state changes and data disclosure. Users should upgrade to fastify 5.12.2 or later.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 16:34 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
Impacted products
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CVE-2026-16732 (GCVE-0-2026-16732)
Vulnerability from cvelistv5 – Published: 2026-08-18 20:30 – Updated: 2026-08-19 13:16
VLAI
EPSS
VEX
Title
fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count
Summary
fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function forms of trustProxy correctly, because those forms compile to predicates that inspect the connecting address. The hop-count form, where trustProxy is set to a number, compiles to a predicate that structurally ignores the address, so the guard is always satisfied for any hop count of one or more. Applications configured with a numeric trustProxy value, such as trustProxy set to 1 for a single reverse proxy, remain vulnerable: an attacker who can reach the Fastify origin directly, bypassing the front-facing proxy, can spoof the forwarded request fields exactly as in the unpatched version. The impact class matches the parent CVE-2026-3635, including host injection in generated URLs, HTTPS-enforcement bypass, secure-cookie and CSRF-origin bypass, and host-based routing and cache poisoning. Affected versions are fastify from 5.8.3 up to but not including 5.12.1. Patches: patched in fastify 5.12.1, where the numeric form of trustProxy is disabled at runtime and removed from the TypeScript type union. Workarounds: migrate to an IP, CIDR, or custom-function trustProxy value that validates the connecting address, and ensure the Fastify origin is only reachable through the trusted proxy chain.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 13:15 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
Impacted products
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CVE-2026-18504 (GCVE-0-2026-18504)
Vulnerability from cvelistv5 – Published: 2026-08-18 20:19 – Updated: 2026-08-19 13:15
VLAI
EPSS
VEX
Title
fastify vulnerable to schema validation bypass via root primitive coercion mismatch
Summary
fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema validation bypass when a request body schema targets a root primitive value. When the schema validates a top-level primitive such as an integer, Ajv can coerce a JSON string into the expected type during validation, but Fastify does not replace the root request body with the coerced value, so the route handler receives the original unvalidated string. As a result, a request that should have failed validation can reach application logic with a value that does not satisfy the schema, which can undermine integrity and access-control checks that rely on the validated type. Users should upgrade to fastify 5.12.1, which fixes the mismatch. No known workarounds are available.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 13:14 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
Impacted products
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CVE-2026-33807 (GCVE-0-2026-33807)
Vulnerability from cvelistv5 – Published: 2026-04-15 09:52 – Updated: 2026-04-15 13:09
VLAI
EPSS
VEX
Title
@fastify/express vulnerable to middleware path doubling causing authentication bypass in child plugin scopes
Summary
@fastify/express v4.0.4 and earlier contains a path handling bug in the onRegister function that causes middleware paths to be doubled when inherited by child plugins. When a child plugin is registered with a prefix that matches a middleware path, the middleware path is prefixed a second time, causing it to never match incoming requests. This results in complete bypass of Express middleware security controls, including authentication, authorization, and rate limiting, for all routes defined within affected child plugin scopes. No special configuration or request crafting is required.
Upgrade to @fastify/express v4.0.5 or later.
Severity
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 13:09 UTC
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
1 product
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Affected:
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Unaffected: 4.0.5 (semver) |
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CVE-2026-33808 (GCVE-0-2026-33808)
Vulnerability from cvelistv5 – Published: 2026-04-15 09:29 – Updated: 2026-04-15 13:10
VLAI
EPSS
VEX
Title
@fastify/express vulnerable to middleware authentication bypass via URL normalization gaps (duplicate slashes and semicolons)
Summary
Impact@fastify/express v4.0.4 and earlier fails to normalize URLs before passing them to Express middleware when Fastify router normalization options are enabled. This allows complete bypass of path-scoped authentication middleware via duplicate slashes when ignoreDuplicateSlashes is enabled, or via semicolon delimiters when useSemicolonDelimiter is enabled. In both cases, Fastify router normalizes the URL and matches the route, but @fastify/express passes the original un-normalized URL to Express middleware, which fails to match and is skipped. An unauthenticated attacker can access protected routes by manipulating the URL path.
PatchesUpgrade to @fastify/express v4.0.5 or later.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 13:10 UTC
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | @fastify/express |
Affected:
0 , < 4.0.5
(semver)
Unaffected: 4.0.5 (semver) |
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CVE-2026-33806 (GCVE-0-2026-33806)
Vulnerability from cvelistv5 – Published: 2026-04-15 00:14 – Updated: 2026-07-15 01:06
VLAI
EPSS
VEX
Title
fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content-Type Header
Summary
Impact:
Fastify applications using schema.body.content for per-content-type body validation can have validation bypassed entirely by prepending a space to the Content-Type header. The body is still parsed correctly but schema validation is skipped.
This is a regression introduced in fastify >= 5.3.2 by the fix for CVE-2025-32442
Patches:
Upgrade to fastify v5.8.5 or later.
Workarounds:
None. Upgrade to the patched version.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 14:02 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify/security/advis… | |
| https://cna.openjsf.org/security-advisories.html | |
| https://access.redhat.com/security/cve/CVE-2026-33806 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2458596 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify |
Affected:
5.3.2 , < 5.8.5
(semver)
Unaffected: 5.8.5 (semver) |
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cpe:/a:redhat:enterprise_linux_ai:3
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cpe:/a:redhat:openshift_ai
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|
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cpe:/a:redhat:openshift_devspaces:3
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CVE-2026-3635 (GCVE-0-2026-3635)
Vulnerability from cvelistv5 – Published: 2026-03-23 13:53 – Updated: 2026-03-23 15:30
VLAI
EPSS
VEX
Title
Fastify request.protocol and request.host spoofable via X-Forwarded-Proto/Host from untrusted connections when trustProxy uses restrictive trust function
Summary
Summary
When trustProxy is configured with a restrictive trust function (e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function), the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including connections from untrusted IPs. This allows an attacker connecting directly to Fastify (bypassing the proxy) to spoof both the protocol and host seen by the application.
Affected Versions
fastify <= 5.8.2
Impact
Applications using request.protocol or request.host for security decisions (HTTPS enforcement, secure cookie flags, CSRF origin checks, URL construction, host-based routing) are affected when trustProxy is configured with a restrictive trust function.
When trustProxy: true (trust everything), both host and protocol trust all forwarded headers — this is expected behavior. The vulnerability only manifests with restrictive trust configurations.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 15:29 UTC
CWE
- CWE-348 - Use of less trusted source
Assigner
References
Impacted products
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CVE-2026-3419 (GCVE-0-2026-3419)
Vulnerability from cvelistv5 – Published: 2026-03-06 17:50 – Updated: 2026-03-09 14:55
VLAI
EPSS
VEX
Title
Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
Summary
Fastify incorrectly accepts malformed `Content-Type` headers containing trailing characters after the subtype token, in violation of RFC 9110 §8.3.1(https://httpwg.org/specs/rfc9110.html#field.content-type). For example, a request sent with Content-Type: application/json garbage passes validation and is processed normally, rather than being rejected with 415 Unsupported Media Type.
When regex-based content-type parsers are in use (a documented Fastify feature), the malformed value is matched against registered parsers using the full string including the trailing garbage. This means a request with an invalid content-type may be routed to and processed by a parser it should never have reached.
Impact:
An attacker can send requests with RFC-invalid Content-Type headers that bypass validity checks, reach content-type parser matching, and be processed by the server. Requests that should be rejected at the validation stage are instead handled as if the content-type were valid.
Workarounds:
Deploy a WAF rule to protect against this
Fix:
The fix is available starting with v5.8.1.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-09 14:55 UTC
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
6 references
Impacted products
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CVE-2026-25223 (GCVE-0-2026-25223)
Vulnerability from cvelistv5 – Published: 2026-02-03 21:21 – Updated: 2026-09-16 12:04
VLAI
EPSS
VEX
Title
Fastify's Content-Type header tab character allows body validation bypass
Summary
Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.2, a validation bypass vulnerability exists in Fastify where request body validation schemas specified by Content-Type can be completely circumvented. By appending a tab character (\t) followed by arbitrary content to the Content-Type header, attackers can bypass body validation while the server still processes the body as the original content type. This issue has been patched in version 5.7.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 21:18 UTC
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify/security/advis… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify/commit/32d7b6a… | x_refsource_MISC |
| https://hackerone.com/reports/3464114 | x_refsource_MISC |
| https://fastify.dev/docs/latest/Reference/Validat… | x_refsource_MISC |
| https://github.com/fastify/fastify/blob/759e9787b… | x_refsource_MISC |
| https://github.com/fastify/fastify/blob/759e9787b… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-25223 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2436560 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:5807 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:10184 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6192 | vendor-advisoryx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify |
Affected:
< 5.7.2
|
|
| Red Hat | Red Hat OpenShift AI 2.16 |
Unaffected:
1774282136 , < *
(rpm)
cpe:/a:redhat:openshift_ai:2.16::el8 |
|
| Red Hat | Red Hat OpenShift AI 2.25 |
Unaffected:
1776742021 , < *
(rpm)
cpe:/a:redhat:openshift_ai:2.25::el9 |
|
| Red Hat | Red Hat OpenShift AI 2.25 |
Unaffected:
1776742141 , < *
(rpm)
cpe:/a:redhat:openshift_ai:2.25::el9 |
|
| Red Hat | Red Hat OpenShift Dev Spaces 3.27 |
Unaffected:
1774476526 , < *
(rpm)
cpe:/a:redhat:openshift_devspaces:3.27::el9 |
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-25224 (GCVE-0-2026-25224)
Vulnerability from cvelistv5 – Published: 2026-02-03 21:21 – Updated: 2026-02-04 16:20
VLAI
EPSS
VEX
Title
Fastify Vulnerable to DoS via Unbounded Memory Allocation in sendWebStream
Summary
Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.3, a denial-of-service vulnerability in Fastify’s Web Streams response handling can allow a remote client to exhaust server memory. Applications that return a ReadableStream (or Response with a Web Stream body) via reply.send() are impacted. A slow or non-reading client can trigger unbounded buffering when backpressure is ignored, leading to process crashes or severe degradation. This issue has been patched in version 5.7.3.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 16:20 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify/security/advis… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify/commit/eb11156… | x_refsource_MISC |
| https://hackerone.com/reports/3524779 | x_refsource_MISC |
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CVE-2026-22037 (GCVE-0-2026-22037)
Vulnerability from cvelistv5 – Published: 2026-01-19 16:48 – Updated: 2026-01-20 21:34
VLAI
EPSS
VEX
Title
@fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)
Summary
The @fastify/express plugin adds full Express compatibility to Fastify. A security vulnerability exists in @fastify/express prior to version 4.0.3 where middleware registered with a specific path prefix can be bypassed using URL-encoded characters (e.g., `/%61dmin` instead of `/admin`). While the middleware engine fails to match the encoded path and skips execution, the underlying Fastify router correctly decodes the path and matches the route handler, allowing attackers to access protected endpoints without the middleware constraints. The vulnerability is caused by how @fastify/express matches requests against registered middleware paths. This vulnerability is similar to, but differs from, CVE-2026-22031 because this is a different npm module with its own code. Version 4.0.3 of @fastify/express contains a patch fort the issue.
Severity
8.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-20 21:34 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-express/securi… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-express/commit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-express |
Affected:
< 4.0.3
|
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CVE-2026-22031 (GCVE-0-2026-22031)
Vulnerability from cvelistv5 – Published: 2026-01-19 15:24 – Updated: 2026-01-20 14:45
VLAI
EPSS
VEX
Title
Fastify Middie Middleware Path Bypass
Summary
@fastify/middie is the plugin that adds middleware support on steroids to Fastify. A security vulnerability exists in @fastify/middie prior to version 9.1.0 where middleware registered with a specific path prefix can be bypassed using URL-encoded characters (e.g., `/%61dmin` instead of `/admin`). While the middleware engine fails to match the encoded path and skips execution, the underlying Fastify router correctly decodes the path and matches the route handler, allowing attackers to access protected endpoints without the middleware constraints. Version 9.1.0 fixes the issue.
Severity
8.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-20 14:45 UTC
CWE
- CWE-177 - Improper Handling of URL Encoding (Hex Encoding)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/fastify/middie/security/adviso… | x_refsource_CONFIRM |
| https://github.com/fastify/middie/pull/245 | x_refsource_MISC |
| https://github.com/fastify/middie/commit/d44cd56e… | x_refsource_MISC |
| https://github.com/fastify/middie/releases/tag/v9.1.0 | x_refsource_MISC |
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CVE-2025-66415 (GCVE-0-2025-66415)
Vulnerability from cvelistv5 – Published: 2025-12-01 22:39 – Updated: 2025-12-02 14:13
VLAI
EPSS
VEX
Title
fastify-reply-from bypass of reply forwarding
Summary
fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. This vulnerability is fixed in 12.5.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-02 14:13 UTC
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-reply-from/sec… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-reply-from/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-reply-from |
Affected:
< 12.5.0
|
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CVE-2025-32442 (GCVE-0-2025-32442)
Vulnerability from cvelistv5 – Published: 2025-04-18 15:59 – Updated: 2025-08-22 20:50
VLAI
EPSS
VEX
Title
Fastify vulnerable to invalid content-type parsing, which could lead to validation bypass
Summary
Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies for different content types have a possibility to bypass validation by providing a _slightly altered_ content type such as with different casing or altered whitespacing before `;`. This was patched in v5.3.1, but the initial patch did not cover all problems. This has been fully patched in v5.3.2 and v4.29.1. A workaround involves not specifying individual content types in the schema.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-21 13:28 UTC
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify/security/advis… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify/commit/436da4c… | x_refsource_MISC |
| https://github.com/fastify/fastify/commit/f3d2bcb… | x_refsource_MISC |
| https://hackerone.com/reports/3087928 | x_refsource_MISC |
Impacted products
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CVE-2025-24033 (GCVE-0-2025-24033)
Vulnerability from cvelistv5 – Published: 2025-01-23 17:40 – Updated: 2025-02-12 20:41
VLAI
EPSS
VEX
Title
@fastify/multipart vulnerable to unlimited consumption of resources
Summary
@fastify/multipart is a Fastify plugin for parsing the multipart content-type. Prior to versions 8.3.1 and 9.0.3, the `saveRequestFiles` function does not delete the uploaded temporary files when user cancels the request. The issue is fixed in versions 8.3.1 and 9.0.3. As a workaround, do not use `saveRequestFiles`.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-23 18:54 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-multipart/secu… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-multipart/issues/546 | x_refsource_MISC |
| https://github.com/fastify/fastify-multipart/pull/567 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-multipart |
Affected:
< 8.3.1
Affected: >= 9.0.0, < 9.0.3 |
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CVE-2024-35220 (GCVE-0-2024-35220)
Vulnerability from cvelistv5 – Published: 2024-05-21 20:26 – Updated: 2024-08-02 03:07
VLAI
EPSS
VEX
Title
@fastify/session reuses destroyed session cookie
Summary
@fastify/session is a session plugin for fastify. Requires the @fastify/cookie plugin. When restoring the cookie from the session store, the `expires` field is overriden if the `maxAge` field was set.
This means a cookie is never correctly detected as expired and thus expired sessions are not destroyed. This vulnerability has been patched 10.8.0.
Severity
7.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-22 15:49 UTC
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/session/security/advis… | x_refsource_CONFIRM |
| https://github.com/fastify/session/issues/251 | x_refsource_MISC |
| https://github.com/fastify/session/commit/0495ce5… | x_refsource_MISC |
Impacted products
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CVE-2024-31999 (GCVE-0-2024-31999)
Vulnerability from cvelistv5 – Published: 2024-04-10 21:59 – Updated: 2024-08-02 01:59
VLAI
EPSS
VEX
Title
@fastify/secure-session: Reuse of destroyed secure session cookie
Summary
@festify/secure-session creates a secure stateless cookie session for Fastify. At the end of the request handling, it will encrypt all data in the session with a secret key and attach the ciphertext as a cookie value with the defined cookie name. After that, the session on the server side is destroyed. When an encrypted cookie with matching session name is provided with subsequent requests, it will decrypt the ciphertext to get the data. The plugin then creates a new session with the data in the ciphertext. Thus theoretically the web instance is still accessing the data from a server-side session, but technically that session is generated solely from a user provided cookie (which is assumed to be non-craftable because it is encrypted with a secret key not known to the user). The issue exists in the session removal process. In the delete function of the code, when the session is deleted, it is marked for deletion. However, if an attacker could gain access to the cookie, they could keep using it forever. Version 7.3.0 contains a patch for the issue. As a workaround, one may include a "last update" field in the session, and treat "old sessions" as expired.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-31 17:54 UTC
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-secure-session… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-secure-session… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-secure-session |
Affected:
< 7.3.0
|
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CVE-2024-22207 (GCVE-0-2024-22207)
Vulnerability from cvelistv5 – Published: 2024-01-15 15:40 – Updated: 2025-06-17 14:34
VLAI
EPSS
VEX
Title
Default swagger-ui configuration exposes all files in the module
Summary
fastify-swagger-ui is a Fastify plugin for serving Swagger UI. Prior to 2.1.0, the default configuration of `@fastify/swagger-ui` without `baseDir` set will lead to all files in the module's directory being exposed via http routes served by the module. The vulnerability is fixed in v2.1.0. Setting the `baseDir` option can also work around this vulnerability.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-17 14:34 UTC
CWE
- CWE-1188 - Insecure Default Initialization of Resource
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-swagger-ui/sec… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-swagger-ui/com… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2024021… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-swagger-ui |
Affected:
< 2.1.0
|
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CVE-2023-51701 (GCVE-0-2023-51701)
Vulnerability from cvelistv5 – Published: 2024-01-08 13:55 – Updated: 2025-06-03 14:37
VLAI
EPSS
VEX
Title
@fastify-reply-from JSON Content-Type parsing confusion
Summary
fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. A reverse proxy server built with `@fastify/reply-from` could misinterpret the incoming body by passing an header `ContentType: application/json ; charset=utf-8`. This can lead to bypass of security checks. This vulnerability has been patched in '@fastify/reply-from` version 9.6.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 15:43 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-reply-from/sec… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-reply-from/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-reply-from |
Affected:
< 9.6.0
|
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CVE-2023-29020 (GCVE-0-2023-29020)
Vulnerability from cvelistv5 – Published: 2023-04-21 22:31 – Updated: 2025-02-04 19:38
VLAI
EPSS
VEX
Title
Cross site request forgery token fixation in fastify-passport
Summary
@fastify/passport is a port of passport authentication library for the Fastify ecosystem. The CSRF (Cross-Site Request Forger) protection enforced by the `@fastify/csrf-protection` library, when combined with `@fastify/passport` in affected versions, can be bypassed by network and same-site attackers. `fastify/csrf-protection` implements the synchronizer token pattern (using plugins `@fastify/session` and `@fastify/secure-session`) by storing a random value used for CSRF token generation in the `_csrf` attribute of a user's session. The `@fastify/passport` library does not clear the session object upon authentication, preserving the `_csrf` attribute between pre-login and authenticated sessions. Consequently, CSRF tokens generated before authentication are still valid. Network and same-site attackers can thus obtain a CSRF token for their pre-session, fixate that pre-session in the victim's browser via cookie tossing, and then perform a CSRF attack after the victim authenticates. As a solution, newer versions of `@fastify/passport` include the configuration options: `clearSessionOnLogin (default: true)` and `clearSessionIgnoreFields (default: ['passport', 'session'])` to clear all the session attributes by default, preserving those explicitly defined in `clearSessionIgnoreFields`.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 19:38 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-passport/secur… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-passport/commi… | x_refsource_MISC |
| https://cheatsheetseries.owasp.org/cheatsheets/Cr… | x_refsource_MISC |
| https://owasp.org/www-community/attacks/csrf | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-passport |
Affected:
< 1.1.0
Affected: >= 2.0.0, < 2.3.0 |
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CVE-2023-29019 (GCVE-0-2023-29019)
Vulnerability from cvelistv5 – Published: 2023-04-21 22:28 – Updated: 2025-02-04 19:38
VLAI
EPSS
VEX
Title
Session fixation in fastify-passport
Summary
@fastify/passport is a port of passport authentication library for the Fastify ecosystem. Applications using `@fastify/passport` in affected versions for user authentication, in combination with `@fastify/session` as the underlying session management mechanism, are vulnerable to session fixation attacks from network and same-site attackers. fastify applications rely on the `@fastify/passport` library for user authentication. The login and user validation are performed by the `authenticate` function. When executing this function, the `sessionId` is preserved between the pre-login and the authenticated session. Network and same-site attackers can hijack the victim's session by tossing a valid `sessionId` cookie in the victim's browser and waiting for the victim to log in on the website. As a solution, newer versions of `@fastify/passport` regenerate `sessionId` upon login, preventing the attacker-controlled pre-session cookie from being upgraded to an authenticated session. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 19:38 UTC
CWE
- CWE-384 - Session Fixation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-passport/secur… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-passport/commi… | x_refsource_MISC |
| https://owasp.org/www-community/attacks/Session_f… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-passport |
Affected:
< 1.1.0
Affected: >= 2.0.0, < 2.3.0 |
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CVE-2023-27495 (GCVE-0-2023-27495)
Vulnerability from cvelistv5 – Published: 2023-04-20 17:05 – Updated: 2025-02-05 16:07
VLAI
EPSS
VEX
Title
Bypass of CSRF protection in the presence of predictable userInfo in @fastify/csrf-protection
Summary
@fastify/csrf-protection is a plugin which helps protect Fastify servers against CSRF attacks. The CSRF protection enforced by the @fastify/csrf-protection library in combination with @fastify/cookie can be bypassed from network and same-site attackers under certain conditions. @fastify/csrf-protection supports an optional userInfo parameter that binds the CSRF token to the user. This parameter has been introduced to prevent cookie-tossing attacks as a fix for CVE-2021-29624. Whenever userInfo parameter is missing, or its value can be predicted for the target user account, network and same-site attackers can 1. fixate a _csrf cookie in the victim's browser, and 2. forge CSRF tokens that are valid for the victim's session. This allows attackers to bypass the CSRF protection mechanism. As a fix, @fastify/csrf-protection starting from version 6.3.0 (and v4.1.0) includes a server-defined secret hmacKey that cryptographically binds the CSRF token to the value of the _csrf cookie and the userInfo parameter, making tokens non-spoofable by attackers. This protection is effective as long as the userInfo parameter is unique for each user. This is patched in versions 6.3.0 and v4.1.0. Users are advised to upgrade. Users unable to upgrade may use a random, non-predictable userInfo parameter for each user as a mitigation.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-05 16:07 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fastify/csrf-protection/securi… | x_refsource_CONFIRM |
| https://github.com/fastify/csrf-protection/commit… | x_refsource_MISC |
| https://www.cvedetails.com/cve/CVE-2021-29624 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | csrf-protection |
Affected:
< 4.1.0
Affected: >= 5.0.0, < 6.3.0 |
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CVE-2023-25576 (GCVE-0-2023-25576)
Vulnerability from cvelistv5 – Published: 2023-02-14 15:04 – Updated: 2025-03-10 21:12
VLAI
EPSS
VEX
Title
@fastify/multipart vulnerable to DoS due to unlimited number of parts
Summary
@fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-10 20:58 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/fastify/fastify-multipart/secu… | x_refsource_CONFIRM |
| https://github.com/fastify/fastify-multipart/comm… | x_refsource_MISC |
| https://hackerone.com/reports/1816195 | x_refsource_MISC |
| https://github.com/fastify/fastify-multipart/rele… | x_refsource_MISC |
| https://github.com/fastify/fastify-multipart/rele… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-multipart |
Affected:
< 6.0.1
Affected: >= 7.0.0, < 7.4.1 |
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CVE-2022-41919 (GCVE-0-2022-41919)
Vulnerability from cvelistv5 – Published: 2022-11-22 00:00 – Updated: 2025-04-23 16:36
VLAI
EPSS
VEX
Title
Fastify vulnerable to Cross-Site Request Forgery (CSRF) attack via incorrect content type
Summary
Fastify is a web framework with minimal overhead and plugin architecture. The attacker can use the incorrect `Content-Type` to bypass the `Pre-Flight` checking of `fetch`. `fetch()` requests with Content-Type’s essence as "application/x-www-form-urlencoded", "multipart/form-data", or "text/plain", could potentially be used to invoke routes that only accepts `application/json` content type, thus bypassing any CORS protection, and therefore they could lead to a Cross-Site Request Forgery attack. This issue has been patched in version 4.10.2 and 3.29.4. As a workaround, implement Cross-Site Request Forgery protection using `@fastify/csrf'.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:54 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
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CVE-2022-39386 (GCVE-0-2022-39386)
Vulnerability from cvelistv5 – Published: 2022-11-08 00:00 – Updated: 2025-04-23 16:39
VLAI
EPSS
VEX
Title
fastify-websocket vulnerable to uncaught exception via crash on malformed packet
Summary
@fastify/websocket provides WebSocket support for Fastify. Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. This has been patched in version 7.1.1 (fastify v4) and version 5.0.1 (fastify v3). There are currently no known workarounds. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:49 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fastify | fastify-websocket |
Affected:
>= 5.0.0, < 5.0.1
Affected: >= 6.0.0, < 7.1.1 Affected: <= 4.3.0 |
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CVE-2022-39288 (GCVE-0-2022-39288)
Vulnerability from cvelistv5 – Published: 2022-10-10 00:00 – Updated: 2025-04-23 16:51
VLAI
EPSS
VEX
Title
Denial of service in Fastify via Content-Type header
Summary
fastify is a fast and low overhead web framework, for Node.js. Affected versions of fastify are subject to a denial of service via malicious use of the Content-Type header. An attacker can send an invalid Content-Type header that can cause the application to crash. This issue has been addressed in commit `fbb07e8d` and will be included in release version 4.8.1. Users are advised to upgrade. Users unable to upgrade may manually filter out http content with malicious Content-Type headers.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:50 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
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