{"id":"CVE-2026-29791","state":"PUBLISHED","title":"Agentgateway: Missing parameter sanitization in MCP to OpenAPI conversion","description":"Agentgateway is an open source data plane for agentic AI connectivity within or across any agent framework or environment. Prior to version 0.12.0, when converting MCP tools/call request to OpenAPI request, input path, query, and header values are not sanitized. This issue has been patched in version 0.12.0.","publishedAt":"2026-03-06T20:39:40.852Z","updatedAt":"2026-03-09T20:54:30.319Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["agentgateway agentgateway"],"affected":[{"vendor":"agentgateway","product":"agentgateway","versions":[{"version":"< 0.12.0","status":"affected"}]}],"references":["https://github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rq"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/29xxx/CVE-2026-29791.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-29791","state":"PUBLISHED","datePublished":"2026-03-06T20:39:40.852Z","dateUpdated":"2026-03-09T20:54:30.319Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-04T16:26:02.900Z"},"containers":{"cna":{"title":"Agentgateway: Missing parameter sanitization in MCP to OpenAPI conversion","descriptions":[{"lang":"en","value":"Agentgateway is an open source data plane for agentic AI connectivity within or across any agent framework or environment. Prior to version 0.12.0, when converting MCP tools/call request to OpenAPI request, input path, query, and header values are not sanitized. This issue has been patched in version 0.12.0."}],"affected":[{"vendor":"agentgateway","product":"agentgateway","versions":[{"version":"< 0.12.0","status":"affected"}]}],"references":[{"url":"https://github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rq","name":"https://github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rq","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-06T20:39:40.852Z"},"source":{"advisory":"GHSA-v2x6-wwfw-r2rq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-29791","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-03-09T20:50:18.880504Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T20:54:30.319Z"}}]}}}