{"id":"CVE-2026-65819","state":"PUBLISHED","title":"gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser","description":"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.","publishedAt":"2026-08-07T19:19:16.032Z","updatedAt":"2026-08-11T01:07:57.373Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["gopacket gopacket"],"affected":[{"vendor":"gopacket","product":"gopacket","versions":[{"version":"<= 1.7.0","status":"affected"}]}],"references":["https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2","https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5","https://github.com/gopacket/gopacket/releases/tag/v1.7.0"],"weaknesses":["CWE-125","CWE-400"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/65xxx/CVE-2026-65819.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-65819","state":"PUBLISHED","datePublished":"2026-08-07T19:19:16.032Z","dateUpdated":"2026-08-11T01:07:57.373Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-22T23:16:47.752Z"},"containers":{"cna":{"title":"gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"gopacket","product":"gopacket","versions":[{"version":"<= 1.7.0","status":"affected"}]}],"references":[{"url":"https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2","name":"https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5","name":"https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5","tags":["x_refsource_MISC"]},{"url":"https://github.com/gopacket/gopacket/releases/tag/v1.7.0","name":"https://github.com/gopacket/gopacket/releases/tag/v1.7.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-07T19:19:16.032Z"},"source":{"advisory":"GHSA-8mcr-459q-5mx2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T01:07:46.400637Z","id":"CVE-2026-65819","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-11T01:07:57.373Z"}}]}}}