{"id":"CVE-2025-66220","revision":"d4fccb025ea546dcac2292cf1230cf24","records":[{"revision":"d4fccb025ea546dcac2292cf1230cf24","observedAt":"2026-10-25T03:17:36.152+00:00","statement":{"source":"nvd","id":"CVE-2025-66220","aliases":[],"title":"Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for match_typed_subject_alt_names may incorrectly treat certificates containing an embedded null byte …","description":"Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for match_typed_subject_alt_names may incorrectly treat certificates containing an embedded null byte (\\0) inside an OTHERNAME SAN value as valid matches.","state":0,"publishedAt":"2025-12-03T19:15:58.01+00:00","modifiedAt":"2026-09-25T23:10:00.463+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N","score":5,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-rwjg-c3h2-f57p"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-66220","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-170"],"productCriteria":["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2025-12-03T19:15:58.010","lastModified":"2026-09-25T23:10:00.463"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-66220","identifiers":["CVE-2025-66220"]},"retained":false,"historicalAffected":[]}],"coverage":[]}