CVE-2025-68144
In mcp-server-git versions prior to 2025.12.18, the gitdiff and gitcheckout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values (e.g., --output=/path/to/file for git_diff) would be interpreted as command-line options rather than git refs, enabling arbitrary file overwrites. The fix adds validation that rejects arguments starting with - and verifies the argument resolves to a valid git ref via rev_parse before execution. Users are advised to update to 2025.12.18 resolve this issue.
Thank you to https://hackerone.com/yardenporat for reporting.
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version



Related Resources
References
https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59, https://nvd.nist.gov/vuln/detail/CVE-2025-68144, https://github.com/modelcontextprotocol/servers
