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    CVE-2026-5223

    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.

    Published:May 25, 2026
    Last Modified:Jun 1, 2026
    EPS:May 25, 2026
    EPSS Score:0.00058
    CVSS Score:5.3

    Affected Products

    Vendor
    Rust-lang
    Product
    Cargo

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-27 Leveraging Race Conditions via Symbolic Links

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High