{"id":"CVE-2026-107284","revision":null,"records":[{"revision":"a80cd7cbf2584a9482416904d1267162","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107284","aliases":[],"title":"AsyncHttpClient: WebSocket handshake continues after a failed Sec-WebSocket-Accept check","description":"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.","state":0,"publishedAt":"2026-10-07T21:27:03.257+00:00","modifiedAt":"2026-10-08T14:54:57.517+00:00","affected":[{"ecosystem":"Vendor product","name":"async-http-client","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"AsyncHttpClient\",\n                    \"product\": \"async-http-client\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 3.0.0, < 3.0.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 2.0.0, < 2.16.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7,"severity":"LOW"}],"references":["https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rwhr-j9rv-85f8","https://github.com/AsyncHttpClient/async-http-client/commit/75a278550aa9a980009d022fb4e635f9c8738c03","https://github.com/AsyncHttpClient/async-http-client/commit/ccdcaa627db6d96dcc42105212cb3ba5048bd7f9","https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1","https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107284","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107284","identifiers":["CVE-2026-107284"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T20:24:10.8656273+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-10T20:24:10.8656273+00:00","lastSuccessAt":"2026-11-10T20:24:11.1014027+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:24:11.1014034+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-2421c1d9c7acbeb29d0beef05db65ba30f866dd8493d567d027977a7dcf898ca","complete":true,"records":423424,"lastAttemptAt":"2026-11-10T20:21:32.07925+00:00","lastSuccessAt":"2026-11-10T20:21:31.3142946+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:21:32.07925+00:00","snapshotPublishedAt":"2026-11-10T19:24:42+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-96c5fae12ccd4cbbac841343b0e65301","complete":true,"records":13707,"lastAttemptAt":"2026-11-10T20:25:04.1663522+00:00","lastSuccessAt":"2026-11-10T20:25:04.161+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:25:04.161+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13761,"expectedIdentifiers":13761,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T20:24:10.8656273+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-10T20:24:10.8656273+00:00","lastSuccessAt":"2026-11-10T20:24:16.2042236+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:24:16.2042284+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8a0a079a16384c6f8a07b9e766261b30","complete":false,"records":13713,"lastAttemptAt":"2026-11-10T20:24:41.8092265+00:00","lastSuccessAt":"2026-11-10T20:24:41.804+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:24:41.804+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13758,"expectedIdentifiers":13761,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-e41003cabc4bca6ffa7416326ea16ef9368e02303054ea1c5ab1ac33fb67507c","complete":true,"records":9935,"lastAttemptAt":"2026-11-10T20:24:04.6236682+00:00","lastSuccessAt":"2026-11-10T20:24:04.2273564+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:24:04.6236682+00:00","snapshotPublishedAt":"2026-11-10T20:03:04+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T20:21:32.2201304+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:21:32.2201304+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-0e3796c351bac632fda8fc3b3641da2bc6f0237cd79e78b1e59d17ce0aa22d32","complete":true,"records":3081,"lastAttemptAt":"2026-11-10T20:24:10.7188782+00:00","lastSuccessAt":"2026-11-10T20:24:10.5326555+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:24:10.7188782+00:00","snapshotPublishedAt":"2026-11-10T20:03:04+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-cf2375b2724ddc86142dd17e4a85328705e8819ef40e7e56fc4efe642554db3d","complete":true,"records":231631,"lastAttemptAt":"2026-11-10T20:23:51.5305504+00:00","lastSuccessAt":"2026-11-10T20:23:49.9124016+00:00","error":null,"lastVerifiedAt":"2026-11-10T20:23:51.5305504+00:00","snapshotPublishedAt":"2026-11-10T20:03:09+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}