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CVE-2026-114608

CVE-2026-114608 · Pylint: Arbitrary code execution via pickle deserialization of the stats cache in PYLINT_HOME

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

Pylint is a static code analyser for Python. From 0.15.2 until 4.0.9, Pylint stores module statistics in predictable files under PYLINT_HOME and loads those files with pickle.load on a later run. An attacker who can write to a shared, group-writable, or otherwise untrusted cache directory can replace a stats cache with crafted serialized data, causing arbitrary code to execute with the privileges of the user who next runs Pylint. The default per-user cache is not normally writable by another user. This issue is fixed in version 4.0.9.

CVSS 5.4 · Medium · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • pylint

    Versions
    • < 4.0.9: Affected

    No fix published

  • pylint Debian:12

    Versions
    • 2.16.2-2
    • 2.17.4-1
    • 3.0.3-1
    • 3.0.3-2
    • 3.1.0-1
    • 3.1.0-2
    • 3.2.2-1
    • 3.2.2-2
    • 3.2.6-1
    • 3.2.7-1
    • 3.3.1-1
    • 3.3.1-2
    • 3.3.3-1
    • 3.3.3-2
    • 3.3.4-1
    • 3.3.4-2
    • 4.0.4-1
    • 4.0.5-1
    • 4.0.6-1
    • 4.0.8-1
    • 4.0.8-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pylint Debian:13

    Versions
    • 3.3.4-1
    • 3.3.4-2
    • 4.0.4-1
    • 4.0.5-1
    • 4.0.6-1
    • 4.0.8-1
    • 4.0.8-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pylint Debian:14

    Versions
    • 3.3.4-1
    • 3.3.4-2
    • 4.0.4-1
    • 4.0.5-1
    • 4.0.6-1
    • 4.0.8-1
    • 4.0.8-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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