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CVE-2026-73621

CVE-2026-73621 · GitPython before 3.1.56 Arbitrary File Truncation via Commit.count

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

GitPython before 3.1.56 contains an argument injection vulnerability in the Commit.count() method, which forwards keyword arguments to 'git rev-list' without the check_unsafe_options guard present in the sibling iter_items method. An attacker who can control options passed to Commit.count (e.g., via an application that forwards a user-supplied options dict) can supply output=<path>, causing 'git rev-list --output=<path>' to open and truncate the target file to zero bytes before revision parsing. This allows destruction/blanking of an arbitrary file at the process's privilege level (no content control, 0-byte truncation).

CVSS 5.3 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • gitpython

    Versions
    • ≥ 0, < 3.1.56: Affected (semver)
    • 3.1.56: Not affected (semver)

    Update to 3.1.56

  • python-git Debian:12

    Versions
    • 3.1.30-1
    • 3.1.30-1+deb12u2
    • 3.1.36-1
    • 3.1.37-1
    • 3.1.37-2
    • 3.1.37-3
    • 3.1.44-1
    • 3.1.45-1
    • 3.1.46-1
    • 3.1.50-1
    • 3.1.61-1
    • 3.1.62-1
    • 3.1.62-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Debian:13

    Versions
    • 3.1.44-1
    • 3.1.45-1
    • 3.1.46-1
    • 3.1.50-1
    • 3.1.61-1
    • 3.1.62-1
    • 3.1.62-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Debian:14

    Versions
    • 3.1.44-1
    • 3.1.45-1
    • 3.1.46-1
    • 3.1.50-1
    Affected ranges
    • ECOSYSTEM: < 3.1.61-1

    Update to 3.1.61-1

  • gitpython PyPI

    Versions
    • 0.1.7
    • 0.2.0-beta1
    • 0.3.0-beta1
    • 0.3.0-beta2
    • 0.3.1-beta2
    • 0.3.2
    • 0.3.2.1
    • 0.3.2.RC1
    • 0.3.3
    • 0.3.4
    • 0.3.5
    • 0.3.6
    • 0.3.7
    • 1.0.0
    • 1.0.1
    • 1.0.2
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.0.5
    • 2.0.6
    • 2.0.7
    • 2.0.8
    • 2.0.9
    • 2.0.9.dev0
    • 2.0.9.dev1
    • 2.1.0
    • 2.1.1
    • 2.1.10
    • 2.1.11
    • 2.1.12
    • 2.1.13
    • 2.1.14
    • 2.1.15
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.1.5
    • 2.1.6
    • 2.1.7
    • 2.1.8
    • 2.1.9
    • 3.0.0
    • 3.0.1
    • 3.0.2
    • 3.0.3
    • 3.0.4
    • 3.0.5
    • 3.0.6
    • 3.0.7
    • 3.0.8
    • 3.0.9
    • 3.1.0
    • 3.1.1
    • 3.1.10
    • 3.1.11
    • 3.1.12
    • 3.1.13
    • 3.1.14
    • 3.1.15
    • 3.1.16
    • 3.1.17
    • 3.1.18
    • 3.1.19
    • 3.1.2
    • 3.1.20
    • 3.1.22
    • 3.1.23
    • 3.1.24
    • 3.1.25
    • 3.1.26
    • 3.1.27
    • 3.1.28
    • 3.1.29
    • 3.1.3
    • 3.1.30
    • 3.1.31
    • 3.1.32
    • 3.1.33
    • 3.1.34
    • 3.1.35
    • 3.1.36
    • 3.1.37
    • 3.1.38
    • 3.1.4
    • 3.1.40
    • 3.1.41
    • 3.1.42
    • 3.1.43
    • 3.1.44
    • 3.1.45
    • 3.1.46
    • 3.1.47
    • 3.1.48
    • 3.1.49
    • 3.1.5
    • 3.1.50
    • 3.1.51
    • 3.1.52
    • 3.1.53
    • 3.1.54
    • 3.1.55
    • 3.1.6
    • 3.1.7
    • 3.1.8
    • 3.1.9
    Affected ranges
    • ECOSYSTEM: < 3.1.56

    Update to 3.1.56

  • python-git Ubuntu:Pro:14.04:LTS

    Versions
    • 0.3.2~RC1-2
    • 0.3.2~RC1-3
    • 0.3.2~RC1-3ubuntu0.1~esm1
    • 0.3.2~RC1-3ubuntu0.1~esm2
    • 0.3.2~RC1-3ubuntu0.1~esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:16.04:LTS

    Versions
    • 1.0.1+git137-gc8b8379-1
    • 1.0.1+git137-gc8b8379-2
    • 1.0.1+git137-gc8b8379-2.1
    • 1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm1
    • 1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm2
    • 1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:18.04:LTS

    Versions
    • 2.1.5-1
    • 2.1.6-1
    • 2.1.7-1
    • 2.1.8-1
    • 2.1.8-1ubuntu0.1~esm1
    • 2.1.8-1ubuntu0.1~esm2
    • 2.1.8-1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:20.04:LTS

    Versions
    • 2.1.11-1
    • 3.0.4-1
    • 3.0.5-1
    • 3.0.7-1
    • 3.0.7-1ubuntu0.1~esm1
    • 3.0.7-1ubuntu0.1~esm2
    • 3.0.7-1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:22.04:LTS

    Versions
    • 3.1.14-1
    • 3.1.23-1
    • 3.1.24-1
    • 3.1.24-1ubuntu0.1~esm1
    • 3.1.24-1ubuntu0.1~esm2
    • 3.1.24-1ubuntu0.1~esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:24.04:LTS

    Versions
    • 3.1.30-1
    • 3.1.37-1
    • 3.1.37-3
    • 3.1.37-3ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:26.10

    Versions
    • 3.1.46-1
    • 3.1.50-1
    • 3.1.61-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-git Ubuntu:Pro:26.04:LTS

    Versions
    • 3.1.44-1
    • 3.1.45-1
    • 3.1.46-1
    • 3.1.46-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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