CVE-2021-42771

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    CVE-2021-42771

    Published: 20 Oct 2021Last Modified: 20 Oct 2026

    Summary:

    Details: Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.

    References: https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html, https://lists.debian.org/debian-lts/2021/10/msg00040.html, https://www.debian.org/security/2021/dsa-5018, https://github.com/python-babel/babel/pull/782, https://www.tenable.com/security/research/tra-2021-14

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a99fa2474c808b51ebdabea18db871e389751559

    Affected versions

    v2.9.0

    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
    CVE-2021-42771 | CVE-DB