{"id":"CVE-2026-65819","summary":"gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser","details":"gopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded through DecodingLayerParser or DecodeFromBytes to trigger an unrecovered panic and remotely deny service.  A patch commit is available at 210f25f.","aliases":["GHSA-8mcr-459q-5mx2"],"modified":"2026-08-09T03:47:27.157638907Z","published":"2026-08-07T19:19:16.032Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-125","CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65819.json"},"references":[{"type":"WEB","url":"https://github.com/gopacket/gopacket/releases/tag/v1.7.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65819.json"},{"type":"ADVISORY","url":"https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65819"},{"type":"FIX","url":"https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gopacket/gopacket","events":[{"introduced":"0"},{"fixed":"d33818550d69d4ae2bb340b6e26cd67af4f46dbd"},{"fixed":"210f25fb9b3ca1af2eb649936f78ad6991b6c9c5"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.7.0"}]}}],"versions":["v1.7.0","v1.6.1","v1.6.0","v1.5.0","v1.4.0","v1.3.1","v1.3.0","v.1.3.0","v1.2.0","v1.1.1","v1.1.0","v1.0.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65819.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}