{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61560","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T16:48:39.923Z","datePublished":"2026-09-15T21:09:00.405Z","dateUpdated":"2026-09-16T13:59:32.899Z"},"containers":{"cna":{"title":"@zereight/mcp-gitlab's unauthenticated arbitrary file read via `upload_markdown` enables PAT exfiltration and full account takeover","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"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"}}],"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"}],"affected":[{"vendor":"zereight","product":"gitlab-mcp","versions":[{"version":"< 2.1.27","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-15T21:09:00.405Z"},"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's 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's `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."}],"source":{"advisory":"GHSA-cv3r-c5h8-f4g5","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-cv3r-c5h8-f4g5","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T13:59:23.698471Z","id":"CVE-2026-61560","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-16T13:59:32.899Z"}}]}}