{"cve":"CVE-2026-41642","nvd":{"published":"2026-05-07T12:16:17.460","modified":"2026-10-26T22:10:00.163","status":"Analyzed","description":"GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP due to a nil pointer dereference. When a malformed BGP UPDATE message contains an unrecognized Path Attribute marked as \"Well-known,\" the daemon fails to interrupt the message handling flow. This results in an illegal memory access and a full process crash (panic). This issue has been patched in version 4.4.0.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":["CWE-476"],"references":["https://github.com/osrg/gobgp/releases/tag/v4.4.0","https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4px","https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4px"],"products":["osrg:gobgp"],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-41642","score":0.00503,"percentile":0.42756,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-7235-89m6-f4px","url":"https://osv.dev/vulnerability/GHSA-7235-89m6-f4px","summary":"GoBGP has Remote Denial of Service (Panic) via Malformed Well-known Path Attribute","modified":"2026-07-24T19:11:42.596064081Z","packages":[{"ecosystem":"Go","name":"github.com/osrg/gobgp/v4","purl":"pkg:golang/github.com/osrg/gobgp/v4","ranges":[">=4.3.0 <4.4.0"],"fixed":["4.4.0"]}]},{"id":"GO-2026-5198","url":"https://osv.dev/vulnerability/GO-2026-5198","summary":"GoBGP: Remote Denial of Service (Panic) via Malformed Well-known Path Attribute in github.com/osrg/gobgp","modified":"2026-07-24T19:00:21.552967791Z","packages":[{"ecosystem":"Go","name":"github.com/osrg/gobgp/v4","purl":"pkg:golang/github.com/osrg/gobgp/v4","ranges":[">=4.3.0 <4.4.0"],"fixed":["4.4.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}