mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files_CVE-2025-68144

{
    "lastseen": "",
    "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.",
    "published": "2025-12-17T22:10:56.086Z",
    "modified": "2025-12-17T22:10:56.086Z",
    "type": "cve",
    "title": "mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files",
    "source": "GitHub_M",
    "references": "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59",
    "id": "CVE-2025-68144",
    "bulletinFamily": "",
    "cwe": [
        "CWE-88"
    ],
    "cvelist": null,
    "sourceData": "modelcontextprotocol servers < 2025.12.17",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "servers",
    "version": "< 2025.12.17",
    "vendor": "modelcontextprotocol",
    "ai_description": "",
    "ai_severity": "",
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    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}