CVE-2026-5222 Affecting rust package, versions <1.91.1-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-ALPINE323-RUST-17092334
  • published30 May 2026
  • disclosed25 May 2026

Introduced: 25 May 2026

NewCVE-2026-5222  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 rust to version 1.91.1-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust package and not the rust package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1