{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "gitlab-mcp",
          "vendor": "zereight",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.1.27"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Prior to version 2.1.27, the SSE transport mode (`SSE=true`) exposes all MCP tools without any authentication. The `upload_markdown` tool reads arbitrary files from the server\u0027s local filesystem via an unsanitized `file_path` parameter and uploads them to a GitLab project. Combined, any unauthenticated network-reachable attacker can read `/proc/self/environ` to steal the server\u0027s `GITLAB_PERSONAL_ACCESS_TOKEN` and achieve full GitLab account takeover. This is the default configuration for Docker deployments. Version 2.1.27 contains a patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "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": "2026-09-15T21:09:00.405Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-cv3r-c5h8-f4g5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-cv3r-c5h8-f4g5"
        },
        {
          "name": "https://github.com/zereight/gitlab-mcp/pull/482",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zereight/gitlab-mcp/pull/482"
        },
        {
          "name": "https://github.com/zereight/gitlab-mcp/pull/554",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zereight/gitlab-mcp/pull/554"
        },
        {
          "name": "https://github.com/zereight/gitlab-mcp/pull/622",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zereight/gitlab-mcp/pull/622"
        }
      ],
      "source": {
        "advisory": "GHSA-cv3r-c5h8-f4g5",
        "discovery": "UNKNOWN"
      },
      "title": "@zereight/mcp-gitlab\u0027s unauthenticated arbitrary file read via `upload_markdown` enables PAT exfiltration and full account takeover"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-61560",
    "datePublished": "2026-09-15T21:09:00.405Z",
    "dateReserved": "2026-07-10T16:48:39.923Z",
    "dateUpdated": "2026-09-15T21:09:00.405Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-61560\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-09-15T22:16:58.040\",\"lastModified\":\"2026-09-15T22:16:58.040\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Prior to version 2.1.27, the SSE transport mode (`SSE=true`) exposes all MCP tools without any authentication. The `upload_markdown` tool reads arbitrary files from the server\u0027s local filesystem via an unsanitized `file_path` parameter and uploads them to a GitLab project. Combined, any unauthenticated network-reachable attacker can read `/proc/self/environ` to steal the server\u0027s `GITLAB_PERSONAL_ACCESS_TOKEN` and achieve full GitLab account takeover. This is the default configuration for Docker deployments. Version 2.1.27 contains a patch.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"zereight\",\"product\":\"gitlab-mcp\",\"versions\":[{\"version\":\"\u003c 2.1.27\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://github.com/zereight/gitlab-mcp/pull/482\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zereight/gitlab-mcp/pull/554\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zereight/gitlab-mcp/pull/622\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-cv3r-c5h8-f4g5\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}