CVE-2025-68144Medium▾ Sunlitmcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
▾ Sunlit zone — Low / medium · no exploitation signal
impact 27.5 · likelihood 1.4 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
7.3%
7.3% → 7.6%
In mcp-server-git versions prior to 2025.12.18, the git_diff and git_checkout 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.
mcp-server-git < 2025.12.18Upgrade to a patched release:
mcp-server-git 2025.12.18Connected by shared product, vendor, weakness, or advisory.
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