{"id":"CVE-2026-26310","aliases":["BIT-envoy-2026-26310","GHSA-3cw6-2j68-868p"],"url":"https://o3.security/vulnerability/CVE-2026-26310","summary":"Crash for scoped ip address in Envoy during DNS","details":"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.","published":"2026-03-10T19:08:22.330Z","modified":"2026-08-07T11:31:12.781347473Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/envoyproxy/envoy","fixedVersion":null},{"ecosystem":"Go","name":"github.com/envoyproxy/envoy","fixedVersion":null},{"ecosystem":"Go","name":"github.com/envoyproxy/envoy","fixedVersion":null},{"ecosystem":"Go","name":"github.com/envoyproxy/envoy","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26310.json"},{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cw6-2j68-868p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26310"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:12.781347473Z"}}