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    CVE-2025-62518

    astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.

    Published:Oct 21, 2025
    Last Modified:Apr 15, 2026
    EPS:Oct 21, 2025
    EPSS Score:0.00018
    CVSS Score:8.1

    Affected Products

    Vendor
    Astral
    Product
    Tokio-tar

    Exploits

    https://github.com/AirineiAndrei/Tarmageddon-CVE-2025-62518-https://github.com/edera-dev/cve-tarmageddon

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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