BIT-python-min-2026-17084

    Dashboard / Vulnerabilities / BIT-python-min-2026-17084

    BIT-python-min-2026-17084

    Published: 11 Sept 2026Last Modified: 11 Sept 2026

    Summary: stringprep.map_table_b2() deviates from RFC 3454 Table B.2

    Details: The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 (the "idna" codec) and the in_table_b2() function of the "stringprep" module. This only affects domain names containing characters that were not previously registered or had their Unicode attributes such as case-folding behavior updated since Unicode 3.2.0.

    References: http://www.openwall.com/lists/oss-security/2026/08/18/2, https://github.com/python/cpython/commit/1e54caa096678a38afcabecabb1ff72400dd6bae, https://github.com/python/cpython/commit/5181304bcec9cfc3c15311741c9154cdff2e3fd7, https://github.com/python/cpython/commit/7e109d084d55e7eb25837a5f3b47ef9beee547bc, https://github.com/python/cpython/commit/c016c2535b74227fddf2cf7334dbfead6c930214, https://github.com/python/cpython/issues/155292, https://github.com/python/cpython/pull/155293, https://mail.python.org/archives/list/[email protected]/thread/EUHHTC6EV7HCLSUHP25C5VHSV4V2MUZN/, https://nvd.nist.gov/vuln/detail/CVE-2026-17084, https://github.com/python/cpython/commit/c28b121a4f0b975937c8b5a1b4934bb361d84296, https://github.com/python/cpython/commit/c42790b34f634051750e5da340d17c7da19e4784

    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
    BIT-python-min-2026-17084 | CVE-DB