Vulnerability-Lookup

OPENSUSE-SU-2026:22011-1

Vulnerability from csaf_opensuse - Published: 2026-10-01 12:43 - Updated: 2026-10-03 16:17

Summary

Security update for wget

Severity

Moderate

Notes

Title of the patch: Security update for wget

Description of the patch: This update for wget fixes the following issue: - CVE-2026-16599: server-controlled unbounded MD5 loop in FTP OPIE (bsc#1276962).

Patchnames: openSUSE-Leap-16.0-1802

CVE-2026-16599

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

Recommended 5 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:wget-0:1.25.0-160000.4.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:wget-0:1.25.0-160000.4.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:wget-0:1.25.0-160000.4.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:wget-0:1.25.0-160000.4.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:wget-lang-0:1.25.0-160000.4.1.noarch	—	Vendor Fix

Threats

Impact moderate

References

6 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1276962	self
https://www.suse.com/security/cve/CVE-2026-16599/	self
https://www.suse.com/security/cve/CVE-2026-16599	external
https://bugzilla.suse.com/1276962	external

JSON

To clipboard

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}

CVE-2026-16599 (GCVE-0-2026-16599)

Vulnerability from cvelistv5 – Published: 2026-08-25 14:17 – Updated: 2026-08-25 14:51

Title

Denial of Service in GNU wget

Summary

GNU wget is vulnerable to denial of service in its FTP OPIE/S-KEY authentication functionality. The server-supplied sequence number from the FTP challenge line is used as an iteration count for an MD5 key-derivation loop without any upper bound validation. A malicious FTP server or a network attacker positioned to intercept FTP traffic can send a crafted OPIE challenge with a sequence number near INT_MAX, causing wget to perform up to approximately 2.1 billion MD5 computations and suspend for some time. The --timeout option does not mitigate this because it applies only to network I/O, not CPU computation. This issue was fixed in commit e9697d98e7249b0f68a6be040a4f3dcc5bc101fa

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-25 14:38 UTC

CWE

CWE-606 - Unchecked input for loop condition

Assigner

CERT-PL ENISA root

References

3 references

URL	Tags
https://cert.pl/en/posts/2026/08/CVE-2026-16599	third-party-advisory
https://gitlab.com/gnuwget/wget	product
https://gitlab.com/gnuwget/wget/-/commit/e9697d98…	patch

Impacted products

1 product

Vendor	Product	Version
GNU	wget	Affected: 0 , ≤ 1.25.0 (semver)

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2026:22011-1

CVE-2026-16599 (GCVE-0-2026-16599)

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