BIT-python-min-2026-15310

    Dashboard / Vulnerabilities / BIT-python-min-2026-15310

    BIT-python-min-2026-15310

    Published: 11 Sept 2026Last Modified: 12 Sept 2026

    Summary: zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits

    Details: When decompressing crafted zip files using the bzip/LZMA/Zstandard compressions, Python could use an attacker-controlled size to pre-allocate memory, possibly resulting in memory exhaustion.

    References: https://github.com/python/cpython/commit/1b424c0178a01e155fd0267dc28a8fc1159b33a8, https://github.com/python/cpython/commit/31980e84b9a708424a0a1dfecde3fc991e313f89, https://github.com/python/cpython/commit/f897dbf2f36a5935700b7c2d94d4681d2136b7d4, https://github.com/python/cpython/issues/156002, https://github.com/python/cpython/pull/156003, https://mail.python.org/archives/list/[email protected]/thread/YUHXURX2WZGKGNA4ANYBQS2VZRYQ5JNK/, https://nvd.nist.gov/vuln/detail/CVE-2026-15310, https://github.com/python/cpython/commit/e2311cfb3dd518f008f312fe0631f4f7490d237a

    Affected packages

    Package

    Name: python-min

    Purl: pkg:bitnami/python-min

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    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