CVE-2025-68144
CVE-2025-68144
6.3
MediumPublished:
Last updated:
Source:security-advisories@github.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- Passive
- Confidentiality (Vulnerable)
- None
- Integrity (Vulnerable)
- None
- Availability (Vulnerable)
- None
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- High
- Availability (Subsequent)
- Low
Description
In mcp-server-git versions prior to 2025.12.17, 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 2025.12.17 resolve this issue when it is released.
References
security-advisories@github.com
https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59