{"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": "2026-09-15T21:09:00.405Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "gitlab-mcp", "vendor": "zereight", "versions": [{"status": "affected", "version": "< 2.1.27"}]}], "source": "security-advisories@github.com"}], "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'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."}], "id": "CVE-2026-61560", "lastModified": "2026-09-15T22:16:58.040", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T22:16:58.040", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}