GHSA-9xwc-hfwc-8w59

Suggest an improvement
Source
https://github.com/advisories/GHSA-9xwc-hfwc-8w59
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-9xwc-hfwc-8w59/GHSA-9xwc-hfwc-8w59.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-9xwc-hfwc-8w59
Aliases
  • CVE-2025-68144
Published
2025-12-17T22:50:29Z
Modified
2025-12-20T05:25:17.121464Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:L CVSS Calculator
Summary
mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
Details

In mcp-server-git versions prior to 2025.12.18, the gitdiff and gitcheckout 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.

Database specific
{
    "nvd_published_at": "2025-12-17T23:16:04Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-88"
    ],
    "github_reviewed_at": "2025-12-17T22:50:29Z",
    "github_reviewed": true
}
References

Affected packages

PyPI / mcp-server-git

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2025.12.18

Affected versions

0.*
0.2.0
0.3.0
0.4.0
0.4.1
0.5.0
0.5.1
0.6.0
0.6.1
0.6.2
2025.*
2025.1.14
2025.7.1
2025.9.25
2025.11.25

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-9xwc-hfwc-8w59/GHSA-9xwc-hfwc-8w59.json"