{"id":"CVE-2026-89134","revision":"b2624047b2994ba9b912a53eadbf07d2","records":[{"revision":"b2624047b2994ba9b912a53eadbf07d2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89134","aliases":[],"title":"Subject CN name-constraint check bypassed when non-DNS SAN present","description":"A certificate with no dNSName SAN but another SAN type present (e.g. registeredID or iPAddress) bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert->subjectCN != NULL && cert->altNames == NULL && !cert->isCA instead of \"no dNSName SAN\", so an out-of-scope CN was accepted. This incomplete fix from CVE-2026-6731, leading to the name-constraint check issue, was introduced in wolfSSL version 5.9.2.","state":0,"publishedAt":"2026-09-27T09:16:58.067+00:00","modifiedAt":"2026-09-29T16:37:26.748+00:00","affected":[{"ecosystem":"Vendor product","name":"wolfSSL","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"wolfSSL\",\n                    \"product\": \"wolfSSL\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"5.9.2\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/wolfSSL/wolfssl/pull/10837"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89134","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89134","identifiers":["CVE-2026-89134"]},"retained":false,"historicalAffected":[]}],"coverage":[]}