{"schema":"threatline.record/2","record":{"id":"CVE-2026-89134","aliases":[],"summary":"Subject CN name-constraint check bypassed when non-DNS SAN present","details":"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.","categories":["Unclassified"],"product":"wolfSSL","vendor":"wolfSSL","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-89134","source_modified_at":"2026-09-29T16:37:26.748Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"wolfSSL","vendor":"wolfSSL","versions":[{"status":"affected","version":"5.9.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00157,"percentile":0.0444,"score_date":"2026-10-23"},"published_at":"2026-09-27T09:16:58.067Z","modified_at":"2026-09-29T16:37:26.748Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-89134","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-29T16:37:26.748Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-89134","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/wolfSSL/wolfssl/pull/10837"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-29T16:35:44.388156Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-29T16:37:26.748Z","content_hash":"1a88d7ace10f966f9a74e9154a0fdacd740476c9707af7b3a7383dd82dbef8d7"}}