CVE-2026-5222 (GCVE-0-2026-5222)

Vulnerability from cvelistv5 – Published: 2026-05-25 08:54 – Updated: 2026-05-26 14:43
VLAI
Title
Cargo can be coerced to share credentials between registries
Summary
Cargo between 1.68 and 1.96 incorrectly normalized the URLs of third-party registries using the sparse index protocol. If a hosting provider allowed multiple registries to be hosted with arbitrary names within the same domain, an attacker able to publish crates in a registry could obtain the credentials of others users of the same registry. The severity of the vulnerability is **low**, due to the extremely niche requirements needed to achieve the attack.
Severity
2.3 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 14:36 UTC
CWE
  • CWE-647 - Use of Non-Canonical URL paths for authorization decisions
Assigner
References
Impacted products
Vendor Product Version
Rust Cargo Affected: 1.68.0 , < 1.96.0 (semver)
Create a notification for this product.
Show details on NVD website
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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.
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