VulnerabilityAnalyzed

CVE-2025-68144

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.

MEDIUM 6.3EPSS 7.21%

Does this matter?

Lower severity and a low EPSS score (7.21%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 4.0: 6.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 7.21% probability · 94th percentile
CISA KEV: Not listed
Weakness: CWE-88
Affected: lfprojects/model context protocol servers
Source: security-advisories@github.com

References

https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.