SB2026051197 - Input validation error in GitPython
Published: May 11, 2026
Security Bulletin ID
SB2026051197
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper input validation in config_writer() and set_value() in git/config.py when processing a crafted section parameter containing newline characters. A remote attacker can supply a crafted section name to inject arbitrary section headers into .git/config and execute arbitrary code.
User interaction is required to trigger a git hook after the malicious configuration is written.
Remediation
Install update from vendor's website.