{"id":"CVE-2026-119299","title":"gopacket: SCTP chunk sub-decoder out-of-bounds panics on crafted segments","summary":"gopacket provides packet processing capabilities for Go. Prior to 1.7.2, the SCTP chunk chain in layers/sctp.go passes attacker-controlled declared lengths and counts to decodeSCTPInit, decodeSCTPShutdown, decodeSCTPError, decodeSCTPSack…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-125","CWE-129"],"vendor":"gopacket","product":"gopacket","affected":["gopacket < 1.7.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-30T16:53:41.650451Z"},"exploitAvailable":true,"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T16:54:01.623Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119299","references":[{"url":"https://github.com/gopacket/gopacket/security/advisories/GHSA-358w-w75h-x6rx","label":"https://github.com/gopacket/gopacket/security/advisories/GHSA-358w-w75h-x6rx"},{"url":"https://github.com/gopacket/gopacket/commit/508044327cc2c065b3db753c010a027e7d1ca621","label":"https://github.com/gopacket/gopacket/commit/508044327cc2c065b3db753c010a027e7d1ca621"},{"url":"https://github.com/gopacket/gopacket/releases/tag/v1.7.2","label":"https://github.com/gopacket/gopacket/releases/tag/v1.7.2"}],"tags":["cve.org","exploit-available"],"epss":0.0047,"epssPercentile":0.40928,"ingestedAt":"2026-11-05T16:24:31.097Z","slug":"CVE-2026-119299","body":"## Overview\n\ngopacket provides packet processing capabilities for Go. Prior to 1.7.2, the SCTP chunk chain in layers/sctp.go passes attacker-controlled declared lengths and counts to decodeSCTPInit, decodeSCTPShutdown, decodeSCTPError, decodeSCTPSack, and decodeSCTPParameter without checking that each chunk contains the fixed fields, parameter TLVs, gap acknowledgements, or duplicate TSNs those sub-decoders read. A crafted SCTP segment can therefore cause out-of-bounds or inverted slice panics; the panic can terminate applications that use gopacket.DecodeOptions.SkipDecodeRecovery, direct registered decoders, or DecodingLayerParser with IgnorePanic enabled, while the default recovery-enabled APIs convert it to a per-packet decode error. This is the SCTP sub-decoder residual named but not remediated by CVE-2026-65819, whose version 1.7.1 changes bounded the generic dispatcher but left these per-type reads and loops unchecked. The impact is availability only, with no data disclosure, modification, or allocation amplification. This issue is fixed in version 1.7.2.\n\n## Affected\n\n- `gopacket < 1.7.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}