{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61568","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T16:48:39.924Z","datePublished":"2026-09-15T20:56:11.723Z","dateUpdated":"2026-09-16T18:36:39.016Z"},"containers":{"cna":{"title":"@zereight/mcp-gitlab: DNS rebinding reaches local Streamable HTTP MCP transport","problemTypes":[{"descriptions":[{"cweId":"CWE-350","lang":"en","description":"CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-vmp7-252j-cwp7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-vmp7-252j-cwp7"},{"name":"https://github.com/zereight/gitlab-mcp/pull/555","tags":["x_refsource_MISC"],"url":"https://github.com/zereight/gitlab-mcp/pull/555"},{"name":"https://github.com/zereight/gitlab-mcp/commit/52207c6f5c0e7a39e9235d491225edbb562a0290","tags":["x_refsource_MISC"],"url":"https://github.com/zereight/gitlab-mcp/commit/52207c6f5c0e7a39e9235d491225edbb562a0290"},{"name":"https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.30","tags":["x_refsource_MISC"],"url":"https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.30"}],"affected":[{"vendor":"zereight","product":"gitlab-mcp","versions":[{"version":"< 2.1.30","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-15T20:56:11.723Z"},"descriptions":[{"lang":"en","value":"`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Versions prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled `Host` and `Origin`. The server accepts those headers and reaches the MCP initialization path instead of rejecting the request at the HTTP boundary. Version 2.1.30 contains a patch."}],"source":{"advisory":"GHSA-vmp7-252j-cwp7","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T18:21:15.912542Z","id":"CVE-2026-61568","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-09-16T18:36:39.016Z"}}]}}