{"id":"CVE-2026-30405","aliases":["GHSA-4p9m-8gc4-rw2h","GO-2026-4736"],"title":"GoBGP vulnerable to a denial of service via the NEXT_HOP path attribute","summary":"GoBGP vulnerable to a denial of service via the NEXT_HOP path attribute","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","vendor":"osrg","product":"github.com/osrg/gobgp/v4","ecosystem":"go","affected":["github.com/osrg/gobgp/v4 <= 4.3.0"],"published":"2026-03-16","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:37.236133067Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-4p9m-8gc4-rw2h","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30405"},{"url":"https://github.com/osrg/gobgp/issues/3305"},{"url":"https://github.com/osrg/gobgp/commit/583080a7258e22cc884162e15b078771aa2c2c80"},{"url":"https://github.com/osrg/gobgp"}],"tags":["osv","go"],"epss":0.00333,"epssPercentile":0.26796,"ingestedAt":"2026-09-12T03:13:01.753Z","slug":"CVE-2026-30405","body":"## Overview\n\nAn issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute.\n\n## Affected packages\n\n- `github.com/osrg/gobgp/v4 <= 4.3.0`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}