{"cve":"CVE-2026-42285","nvd":{"published":"2026-05-07T12:16:18.180","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 4.4.0, an unauthenticated remote BGP peer can trigger a fatal panic in GoBGP by sending a specially crafted BGP UPDATE message. When the server receives a message with inconsistent attribute lengths, it improperly handles the internal state transition to a \"withdraw\" action, leading to a nil pointer dereference in the AdjRib.Update function. This causes the entire GoBGP process to crash, resulting in a complete loss of service availability. This issue has been patched in version 4.5.0.","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/v4.5.0","https://github.com/osrg/gobgp/security/advisories/GHSA-p3w2-64xm-833j","https://github.com/osrg/gobgp/security/advisories/GHSA-p3w2-64xm-833j"],"products":["osrg:gobgp"],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-42285","score":0.00418,"percentile":0.35871,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-p3w2-64xm-833j","url":"https://osv.dev/vulnerability/GHSA-p3w2-64xm-833j","summary":"GoBGP has a panic in AdjRib.Update via malformed BGP Update message (Nil Pointer Dereference)","modified":"2026-07-24T19:11:31.705203597Z","packages":[{"ecosystem":"Go","name":"github.com/osrg/gobgp/v4","purl":"pkg:golang/github.com/osrg/gobgp/v4","ranges":[">=4.4.0 <4.5.0"],"fixed":["4.5.0"]}]},{"id":"GO-2026-5525","url":"https://osv.dev/vulnerability/GO-2026-5525","summary":"GoBGP has a panic in AdjRib.Update via malformed BGP Update message (Nil Pointer Dereference) in github.com/osrg/gobgp","modified":"2026-07-24T19:00:24.115859200Z","packages":[{"ecosystem":"Go","name":"github.com/osrg/gobgp/v4","purl":"pkg:golang/github.com/osrg/gobgp/v4","ranges":[">=4.4.0 <4.5.0"],"fixed":["4.5.0"]}]}],"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."]}