Vulnerability-Lookup

GHSA-5CGR-J3JF-JW3V

Vulnerability from github – Published: 2025-12-17 19:49 – Updated: 2025-12-20 05:13

Summary

mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary filesystem locations

Details

In mcp-server-git versions prior to 2025.9.25, the git_init tool accepted arbitrary filesystem paths and created Git repositories without validating the target location. Unlike other tools which required an existing repository, git_init could operate on any directory accessible to the server process, making those directories eligible for subsequent git operations. The tool was removed entirely, as the server is intended to operate on existing repositories only. Users are advised to upgrade to 2025.9.25 or newer to remediate this issue.

Thank you to https://hackerone.com/yardenporat for disclosure, @0dd for contributing the fix.

Severity ?

6.5 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mcp-server-git"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2025.9.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-68143"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-17T19:49:54Z",
    "nvd_published_at": "2025-12-17T23:16:04Z",
    "severity": "MODERATE"
  },
  "details": "In mcp-server-git versions prior to 2025.9.25, the git_init tool accepted arbitrary filesystem paths and created Git repositories without validating the target location. Unlike other tools which required an existing repository, git_init could operate on any directory accessible to the server process, making those directories eligible for subsequent git operations. The tool was removed entirely, as the server is intended to operate on existing repositories only. Users are advised to upgrade to 2025.9.25 or newer to remediate this issue.\n\nThank you to https://hackerone.com/yardenporat for disclosure, @0dd for contributing the fix.",
  "id": "GHSA-5cgr-j3jf-jw3v",
  "modified": "2025-12-20T05:13:48Z",
  "published": "2025-12-17T19:49:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-5cgr-j3jf-jw3v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68143"
    },
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/servers/commit/eac56e7bcde48fb64d5a973924d05d69a7d876e6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/modelcontextprotocol/servers"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "mcp-server-git\u0027s unrestricted git_init tool allows repository creation at arbitrary filesystem locations"
}

CVE-2025-68143 (GCVE-0-2025-68143)

Vulnerability from cvelistv5 – Published: 2025-12-17 22:09 – Updated: 2025-12-18 15:07

Title

mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary filesystem locations

Summary

Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). In mcp-server-git versions prior to 2025.9.25, the git_init tool accepted arbitrary filesystem paths and created Git repositories without validating the target location. Unlike other tools which required an existing repository, git_init could operate on any directory accessible to the server process, making those directories eligible for subsequent git operations. The tool was removed entirely, as the server is intended to operate on existing repositories only. Users are advised to upgrade to 2025.9.25 or newer to remediate this issue.

Severity ?

6.5 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/modelcontextprotocol/servers/s…	x_refsource_CONFIRM
	https://github.com/modelcontextprotocol/servers/c…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	modelcontextprotocol	servers	Affected: < 2025.9.25

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-68143",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-18T14:53:34.567415Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-18T15:07:15.061Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "servers",
          "vendor": "modelcontextprotocol",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2025.9.25"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). In mcp-server-git versions prior to 2025.9.25, the git_init tool accepted arbitrary filesystem paths and created Git repositories without validating the target location. Unlike other tools which required an existing repository, git_init could operate on any directory accessible to the server process, making those directories eligible for subsequent git operations. The tool was removed entirely, as the server is intended to operate on existing repositories only. Users are advised to upgrade to 2025.9.25 or newer to remediate this issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-17T22:09:43.159Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-5cgr-j3jf-jw3v",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-5cgr-j3jf-jw3v"
        },
        {
          "name": "https://github.com/modelcontextprotocol/servers/commit/eac56e7bcde48fb64d5a973924d05d69a7d876e6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/modelcontextprotocol/servers/commit/eac56e7bcde48fb64d5a973924d05d69a7d876e6"
        }
      ],
      "source": {
        "advisory": "GHSA-5cgr-j3jf-jw3v",
        "discovery": "UNKNOWN"
      },
      "title": "mcp-server-git\u0027s unrestricted git_init tool allows repository creation at arbitrary filesystem locations"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-68143",
    "datePublished": "2025-12-17T22:09:43.159Z",
    "dateReserved": "2025-12-15T18:15:08.404Z",
    "dateUpdated": "2025-12-18T15:07:15.061Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-5CGR-J3JF-JW3V

CVE-2025-68143 (GCVE-0-2025-68143)

Tags

Sightings

Nomenclature