GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Exploit, Vendor Advisory
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.3 · gitpython_projectNVD modified 2026-10-23 23:10
Affected (CPE criteria) 1
cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*
References 3
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/gitpython-before-newline-injection-via-config-writer-section Third Party Advisory
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w Exploit, Vendor Advisory