{"id":"CVE-2026-29791","aliases":["GHSA-v2x6-wwfw-r2rq"],"url":"https://o3.security/vulnerability/CVE-2026-29791","summary":"Agentgateway: Missing parameter sanitization in MCP to OpenAPI conversion","details":"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.","published":"2026-03-06T20:39:40.852Z","modified":"2026-07-15T01:49:21.893788405Z","cvss":{"score":4.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/agentgateway/agentgateway","fixedVersion":"0.12.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29791.json"},{"type":"ADVISORY","url":"https://github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29791"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:21.893788405Z"}}