PT-2026-43025 · Rust · Cargo

Published 2026-05-25 · Updated 2026-05-25 · CVE-2026-5223

Mitre

CVSS v4.0

6.5

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H

Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. The severity of the vulnerability is medium for users of third-party registries. Users of crates.io are not affected, as crates.io forbids uploading crates containing any symlink.

Fix

Weakness Enumeration

CWE-61

Related Identifiers

CVE-2026-5223

Affected Products

Cargo

References · 3

• https://groups.google.com/g/rustlang-security-announcements/c/IB74S7Yksg8 · Vendor Advisory
• https://github.com/rust-lang/cargo/pull/17031 · Patch
• https://blog.rust-lang.org/2026/05/25/cve-2026-5223 · Vendor Advisory