{"schema":"threatline.record/2","record":{"id":"CVE-2026-116541","aliases":["GHSA-9xr3-jwv4-r489"],"summary":"netty-tcnative before 2.0.84.Final Denial of Service via BIO Write Overcount","details":"Netty netty-tcnative before 2.0.84.Final contains a denial of service vulnerability in the tcn_write_to_bytebuffer BIO write callback that overreports bytes consumed. Remote TLS 1.3 peers can provoke queued post-handshake records like NewSessionTicket or KeyUpdate to truncate flights, fail connections, or abort the JVM process.","categories":["Frameworks"],"product":"netty-tcnative","vendor":"netty","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116541","source_modified_at":"2026-10-26T14:59:40.847Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"netty-tcnative","vendor":"netty","versions":[{"version":"0","lessThan":"2.0.84.Final","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116541","source_modified_at":"2026-10-26T14:59:40.847Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"netty-tcnative-boringssl-static","vendor":"netty","versions":[{"version":"0","lessThan":"2.0.84.Final","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116541","source_modified_at":"2026-10-26T14:59:40.847Z","fetched_at":"2026-10-26T19:10:57.178988Z","package":{"name":"netty-tcnative","ecosystem":null},"version":"2.0.84.Final","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116541","source_modified_at":"2026-10-26T14:59:40.847Z","fetched_at":"2026-10-26T19:10:57.178988Z","package":{"name":"netty-tcnative-boringssl-static","ecosystem":null},"version":"2.0.84.Final","basis":"first unaffected version stated in the CVE record"}],"cvss":8.2,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T14:59:40.847Z","modified_at":"2026-10-26T14:59:40.847Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116541","fetched_at":"2026-10-26T19:10:57.178988Z","source_modified_at":"2026-10-26T14:59:40.847Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/netty/netty-tcnative/security/advisories/GHSA-9xr3-jwv4-r489","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/netty/netty-tcnative/commit/e31df4a5885b35085fdfa3e2dca7c1f705d4745b","tags":["patch"]},{"source":"CVE List","url":"https://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dynamic/src/main/c/ssl.c#L240","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Final","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/netty/netty-tcnative","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/netty-tcnative-before-2.0.84-final-denial-of-service-via-bio-write-overcount","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-26T14:59:40.847Z","content_hash":"06794db2aa4591382a85cccb01ad06b840c083c20d56dbca0d7bdeb1cd193992"}}