CVE-2025-68144: Mcp server git Mcp-server-git Argument Injection Vulnerability

MODERATE
Advisory Identifier: GHSA-9xwc-hfwc-8w59
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CWE-88
Published
Advisory Summary

CVE-2025-68144 is a MODERATE mcp-server-git argument injection vulnerability (CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')) affecting Mcp server git libraries in the PyPI ecosystem. The issue involves mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files. Remediation is available by upgrading affected packages to version 2025.12.18.

CVE-2025-68144 at a Glance

CVE Identifier CVE-2025-68144
GHSA Identifier GHSA-9xwc-hfwc-8w59
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Product Mcp server git
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2025-68144

To remediate this vulnerability, upgrade all affected Mcp server git dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mcp-server-git fixed: 2025.12.18 
pip install mcp-server-git>=2025.12.18
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show mcp-server-git

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-68144, inspect your installed packages using pip:

pip show mcp-server-git

Analyze the terminal output to locate any version of Mcp server git in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2025.12.18), your application is affected.

Note: The pip show mcp-server-git command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection'), where the product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. In Mcp server git, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In mcp-server-git versions prior to 2025.12.18, 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 2025.12.18 resolve this issue. Thank you to https://hackerone.com/yardenporat for reporting.

CVE-2025-68144 Affected Mcp server git Versions

1 component(s)
Fixed Versions:
2025.12.18
Product / Package Ecosystem Affected Versions Fixed Version
mcp-server-git
pypi/mcp-server-git
PyPI
< 2025.12.18
2025.12.18

References

GitHub Advisory / Wiki ADVISORY
https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59
NVD — CVE-2025-68144 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68144
Mcp server git Source Repository REPOSITORY
https://github.com/modelcontextprotocol/servers

Frequently Asked Questions

What is CVE-2025-68144?
CVE-2025-68144 is a security vulnerability in Mcp server git involving mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection').
Which Mcp server git versions are affected?
Affected versions include releases prior to 2025.12.18 across affected packages: mcp-server-git.
What version fixes CVE-2025-68144?
Upgrading to 2025.12.18 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mcp-server-git affected?
Yes, mcp-server-git is affected in releases prior to 2025.12.18. Upgrade your dependency to 2025.12.18 or later.
What CWE is associated with CVE-2025-68144?
CVE-2025-68144 is classified under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.).
How can I check PyPI dependencies for CVE-2025-68144?
Run the dependency tree command: 'pip show mcp-server-git'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9xwc-hfwc-8w59",
  "modified" : "2025-12-20T05:17:54Z",
  "published" : "2025-12-17T22:50:29Z",
  "aliases" : [ "CVE-2025-68144" ],
  "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 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 2025.12.18 resolve this issue.\n\nThank you to https://hackerone.com/yardenporat for reporting.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "mcp-server-git"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2025.12.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-68144"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/modelcontextprotocol/servers"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-88" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-17T22:50:29Z",
    "nvd_published_at" : "2025-12-17T23:16:04Z"
  }
}