{"id":"CVE-2026-54909","state":"PUBLISHED","title":"Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute","description":"pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3.","publishedAt":"2026-07-31T22:03:53.514Z","updatedAt":"2026-08-03T17:30:22.558Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["pion stun"],"affected":[{"vendor":"pion","product":"stun","versions":[{"version":"< 3.1.3","status":"affected"}]}],"references":["https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc","https://github.com/pion/stun/pull/278","https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423","https://github.com/pion/stun/releases/tag/v3.1.3"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54909.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54909","state":"PUBLISHED","datePublished":"2026-07-31T22:03:53.514Z","dateUpdated":"2026-08-03T17:30:22.558Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T13:49:33.556Z"},"containers":{"cna":{"title":"Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute","descriptions":[{"lang":"en","value":"pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3."}],"affected":[{"vendor":"pion","product":"stun","versions":[{"version":"< 3.1.3","status":"affected"}]}],"references":[{"url":"https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc","name":"https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pion/stun/pull/278","name":"https://github.com/pion/stun/pull/278","tags":["x_refsource_MISC"]},{"url":"https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423","name":"https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423","tags":["x_refsource_MISC"]},{"url":"https://github.com/pion/stun/releases/tag/v3.1.3","name":"https://github.com/pion/stun/releases/tag/v3.1.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","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:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-31T22:03:53.514Z"},"source":{"advisory":"GHSA-34rh-wp3j-6cxc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T17:28:49.547530Z","id":"CVE-2026-54909","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":"2026-08-03T17:30:22.558Z"}}]}}}