Summary
mcp-server-git argument injection in gitdiff and gitcheckout functions allows overwriting local files
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.
Impact
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Frequently Asked Questions
- What is CVE-2025-68144? CVE-2025-68144 is a medium-severity security vulnerability in mcp-server-git (pip), affecting versions < 2025.12.18. It is fixed in 2025.12.18.
- Which versions of mcp-server-git are affected by CVE-2025-68144? mcp-server-git (pip) versions < 2025.12.18 is affected.
- Is there a fix for CVE-2025-68144? Yes. CVE-2025-68144 is fixed in 2025.12.18. Upgrade to this version or later.
- Is CVE-2025-68144 exploitable, and should I be worried? Whether CVE-2025-68144 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-68144 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-68144? Upgrade
mcp-server-gitto 2025.12.18 or later.