CVE-2026-76219

GitPython before 3.1.58 Arbitrary File Overwrite via read-tree

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.

Scores

Faiblesses (CWE)

• CWE-88

Avis

• GHSA-4gmw-gg2m-w46p — GitPython: Unguarded git read-tree option forwarding in IndexFile.from_tree/reset/merge_tree enables arbitrary file overwrite
• PYSEC-2026-3838 — GitPython: Unguarded git read-tree option forwarding in IndexFile.from_tree/reset/merge_tree enables arbitrary file overwrite

Références européennes

• ENISA EUVD · EUVD-2026-62460
• GCVE · GCVE-0-2026-76219

Configurations affectées (CPE NVD)

• cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* < 3.1.58

Produits affectés

Références

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-4gmw-gg2m-w46p
• https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-overwrite-via-read-tree

Sources