CVE-2026-76219

GitPython before 3.1.58 Arbitrary File Overwrite via read-tree

Published Aug 19, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Description
GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option validation or argument separation. Attackers can inject the --index-output option to overwrite arbitrary files with a valid git-index blob, destroying existing file content at attacker-controlled writable paths.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4872-1 python-git security update
Github GHSA Github GHSA GHSA-4gmw-gg2m-w46p GitPython: Unguarded git read-tree option forwarding in IndexFile.from_tree/reset/merge_tree enables arbitrary file overwrite
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*
Type Values Removed Values Added
Description GitPython versions before 3.1.58 contain an arbitrary file overwrite vulnerability in IndexFile.from_tree, IndexFile.reset, and IndexFile.merge_tree methods that append caller-influenced treeish strings to git read-tree without option validation or argument separation. Attackers can inject the --index-output option to overwrite arbitrary files with a valid git-index blob, destroying existing file content at attacker-controlled writable paths.
Title GitPython before 3.1.58 Arbitrary File Overwrite via read-tree
First Time appeared Gitpython Project
Gitpython Project gitpython
Weaknesses CWE-88
CPEs cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:*
Vendors & Products Gitpython Project
Gitpython Project gitpython
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 8, 2026, 3:25 PM
Reserved
Aug 19, 2026, 11:35 AM
Status
Analyzed
Published
Aug 19, 2026, 2:17 PM
Modified
Sep 3, 2026, 3:03 PM
Severity
Important
Public date
Aug 19, 2026, 2:02 PM