{"schema":"threatline.record/2","record":{"id":"CVE-2026-109423","aliases":[],"summary":"NetEase Cloud Music TLS Certificate Validation Bypass","details":"NetEase Cloud Music client for Windows (cloudmusic.exe) versions 3.1.38 and 3.1.39.205426 contains a TLS certificate validation vulnerability that allows a network-adjacent attacker to intercept and decrypt HTTPS traffic by failing to validate the server certificate chain, verify the hostname, or consult any Windows certificate trust store. Attackers can perform a man-in-the-middle attack using a rogue certificate authority to decrypt traffic, capture the MUSIC_U session credential sent in authenticated API requests, and modify server responses in transit, enabling account takeover and transport-layer response forgery.","categories":["Unclassified"],"product":"NetEase Cloud Music for Windows","vendor":"NetEase","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109423","source_modified_at":"2026-10-15T13:42:28.896Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"NetEase Cloud Music for Windows","vendor":"NetEase","versions":[{"status":"affected","version":"3.1.38","versionType":"custom"},{"status":"affected","version":"3.1.39.205426","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04279,"score_date":"2026-10-23"},"published_at":"2026-10-12T19:34:31.770Z","modified_at":"2026-10-15T13:42:28.896Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109423","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T13:42:28.896Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109423","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://gist.github.com/LeoWSY-hashblue/10e5383fc2d4d75faf74a9507c6bba9f","tags":["technical-description"]},{"source":"CVE List","url":"https://hr.163.com/product.html/music","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/netease-cloud-music-tls-certificate-validation-bypass","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-15T13:42:15.751056Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T13:42:28.896Z","content_hash":"4f0c457cd2ec3a32d56edd143b2cc64ea89b9648e09de1b599e3ceb2078a1da9"}}