{"id":"CVE-2026-41643","revision":"c3d6aa0e7da34e77bff87bbab69b0473","records":[{"revision":"c3d6aa0e7da34e77bff87bbab69b0473","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-41643","aliases":[],"title":"GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE","description":"GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.","state":0,"publishedAt":"2026-05-07T11:53:23.566+00:00","modifiedAt":"2026-05-07T13:39:04.425+00:00","affected":[{"ecosystem":"Vendor product","name":"gobgp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"osrg\",\n                    \"product\": \"gobgp\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2q","https://github.com/osrg/gobgp/releases/tag/v4.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-41643","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-41643","identifiers":["CVE-2026-41643"]},"retained":false,"historicalAffected":[]}],"coverage":[]}