{"schema":"threatline.record/2","record":{"id":"CVE-2026-107284","aliases":["GHSA-rwhr-j9rv-85f8"],"summary":"AsyncHttpClient: WebSocket handshake continues after a failed Sec-WebSocket-Accept check","details":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 and 2.16.1, WebSocketHandler.upgrade aborts a handshake whose Sec-WebSocket-Accept value is missing or invalid but continues into pipeline installation and onOpen delivery. Frames coalesced with the invalid 101 response can be decoded and delivered from a peer that did not prove the handshake, although the request future fails and the channel closes. This issue is fixed in versions 3.0.12 and 2.16.1.","categories":["Unclassified"],"product":"async-http-client","vendor":"AsyncHttpClient","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107284","source_modified_at":"2026-10-08T14:54:57.517Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"async-http-client","vendor":"AsyncHttpClient","versions":[{"version":">= 3.0.0, < 3.0.12","status":"affected"},{"version":">= 2.0.0, < 2.16.1","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":3.7,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00138,"percentile":0.02886,"score_date":"2026-10-23"},"published_at":"2026-10-07T21:27:03.257Z","modified_at":"2026-10-08T14:54:57.517Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107284","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-08T14:54:57.517Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107284","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/AsyncHttpClient/async-http-client/security/advisories/GHSA-rwhr-j9rv-85f8","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/AsyncHttpClient/async-http-client/commit/75a278550aa9a980009d022fb4e635f9c8738c03","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/AsyncHttpClient/async-http-client/commit/ccdcaa627db6d96dcc42105212cb3ba5048bd7f9","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-08T14:51:19.886474Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-08T14:54:57.517Z","content_hash":"7c6290267c1423f8d994b448badd369bb244ded050c29f5f2c21fd4ad978bfb6"}}