CVE-2025-68144: model context Argument Injection — Fix

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.

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CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Weakness Type (CWE)

CWE-88 CWE-88

Affected Products

Vendor	Product	Versions
lfprojects	model_context_protocol_servers	< 2025.12.17

References

Advisories & Patches

https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59

Frequently Asked Questions

What is CVE-2025-68144? +

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. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-68144? +

CVE-2025-68144 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-68144? +

CVE-2025-68144 affects products from lfprojects, specifically: model_context_protocol_servers. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-68144? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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