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CVE-2026-23949

CVE-2026-23949 · jaraco.context Has a Path Traversal Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue.

CVSS 8.6 · High · EPSS 0.6% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • jaraco.context

    Versions
    • >= 5.2.0, < 6.1.0: Affected

    No fix published

  • jaraco.context Debian:13

    Versions
    • 6.0.1-1
    Affected ranges
    • ECOSYSTEM: < 6.0.1-1+deb13u1

    Update to 6.0.1-1+deb13u1

  • jaraco.context Debian:14

    Versions
    • 6.0.1-1
    Affected ranges
    • ECOSYSTEM: < 6.0.1-2

    Update to 6.0.1-2

  • setuptools Debian:13

    Versions
    • 78.1.1-0.1
    • 79.0.0-1
    • 80.1.0-1
    • 80.9.0-1
    • 80.9.0-2
    • 84.0.0-1
    • 84.0.0-2
    • 84.2.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • setuptools Debian:14

    Versions
    • 78.1.1-0.1
    • 79.0.0-1
    • 80.1.0-1
    • 80.9.0-1
    • 80.9.0-2
    • 84.0.0-1
    Affected ranges
    • ECOSYSTEM: < 84.0.0-2

    Update to 84.0.0-2

  • jaraco-context PyPI

    Versions
    • 5.2.0
    • 5.3.0
    • 6.0.0
    • 6.0.1
    • 6.0.2
    Affected ranges
    • ECOSYSTEM: ≥ 5.2.0, < 6.1.0

    Update to 6.1.0

  • jaraco.context Ubuntu:25.10

    Versions
    • 6.0.1-1
    Affected ranges
    • ECOSYSTEM: < 6.0.1-1ubuntu0.1

    Update to 6.0.1-1ubuntu0.1

Original sources

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