{"id":"CVE-2026-26310","state":"PUBLISHED","title":"Crash for scoped ip address in Envoy during DNS","description":"Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the original_src filter and the dns filter. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.","publishedAt":"2026-03-10T19:08:22.330Z","updatedAt":"2026-03-10T20:12:40.343Z","severity":{"score":5.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["envoyproxy envoy"],"affected":[{"vendor":"envoyproxy","product":"envoy","versions":[{"version":">= 1.37.0, < 1.37.1","status":"affected"},{"version":">= 1.36.0, < 1.36.5","status":"affected"},{"version":">= 1.35.0, < 1.35.9","status":"affected"},{"version":"< 1.34.13","status":"affected"}]}],"references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26310.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26310","state":"PUBLISHED","datePublished":"2026-03-10T19:08:22.330Z","dateUpdated":"2026-03-10T20:12:40.343Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-13T16:27:51.805Z"},"containers":{"cna":{"title":"Crash for scoped ip address in Envoy during DNS","descriptions":[{"lang":"en","value":"Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the original_src filter and the dns filter. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13."}],"affected":[{"vendor":"envoyproxy","product":"envoy","versions":[{"version":">= 1.37.0, < 1.37.1","status":"affected"},{"version":">= 1.36.0, < 1.36.5","status":"affected"},{"version":">= 1.35.0, < 1.35.9","status":"affected"},{"version":"< 1.34.13","status":"affected"}]}],"references":[{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p","name":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"2026-03-10T19:08:22.330Z"},"source":{"advisory":"GHSA-3cw6-2j68-868p","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-26310","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-03-10T20:10:56.890236Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-10T20:12:40.343Z"}}]}}}