{"id":"CVE-2026-107285","aliases":["CLSA-2026-1791926769","CLSA-2026-1793887823","CLSA-2026-1794351138","DEBIAN-CVE-2026-107285","EUVD-2026-94645","GHSA-3wp9-xfwm-rjjf","UBUNTU-CVE-2026-107285"],"status":"published","title":"AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00206,"percentile":0.10731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-319","CWE-522"],"published":"2026-10-07T21:28:34Z","modified":"2026-11-11T01:30:02Z","fixes":[{"ecosystem":"Maven","package":"org.asynchttpclient:async-http-client","fixed_in":["3.0.12","2.16.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.asynchttpclient:async-http-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"last_affected":"3.0.11"},{"fixed":"3.0.12"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.asynchttpclient:async-http-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"last_affected":"2.16.0"},{"fixed":"2.16.1"}]}]},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-example","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-guava","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-jdeferred","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-parent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-registry","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-retrofit2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-rxjava","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-rxjava2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-simple","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-extras-typesafe-config","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-netty-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-project","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.1"},{"fixed":"2.12.1-tuxcare.1"}]}],"versions":["2.12.1"],"bundled":12},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.3"},{"fixed":"2.12.3-tuxcare.2"}]}],"versions":["2.12.3","2.12.3-tuxcare.1"],"bundled":15},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.3"},{"fixed":"2.12.3-tuxcare.2"}]}],"versions":["2.12.3","2.12.3-tuxcare.1"],"bundled":15},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.asynchttpclient:async-http-client-example","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.12.3"},{"fixed":"2.12.3-tux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WebSocket proxy credentials sent to the origin server over a CONNECT tunnel","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T21:28:34.62Z","modified":"2026-10-08T17:57:33.271Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T13:45:14.072357Z"}],"euvd":[{"id":"EUVD-2026-94645","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T21:28:34Z","modified":"2026-10-08T17:57:33Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:27.72962Z"}],"ghsa":[{"id":"GHSA-3wp9-xfwm-rjjf","title":"AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel","description":"### Impact\nWhen a ws:// request is routed through an HTTP proxy with proxy authentication configured, the client tunnels the connection with an HTTP CONNECT, the same as it does for https://. Once the tunnel is open, the WebSocket upgrade request that follows is sent through the tunnel directly to the origin server, not to the proxy. The proxy-auth gate and the companion request-target selection keyed only on whether the URI was secured, which is false for ws://, so the tunnelled upgrade request incorrectly carried the proxy's Proxy-Authorization header and an absolute-form request target meant for the proxy. Any origin server reached over a proxied ws:// connection, or anyone positioned on the origin side of the wire, could recover the proxy credentials: directly for Basic, or as a replayable and offline-crackable response for Digest.\n\n### Affected versions\n* 3.x: up to and including 3.0.11\n* 2.x: up to and including 2.16.0\n\n### Patches\nFixed in 3.0.12 on the 3.x line and in 2.16.1 on the 2.x line. The preemptive Proxy-Authorization header and the absolute-form request target are no longer attached to a tunnelled ws:// upgrade; a ws:// request is now treated like wss://.\n\n### Workarounds\nDo not use proxy authentication together with ws:// requests through an HTTP proxy, or use wss:// instead.\n\n### Details\nThe proxy-auth gate in NettyRequestFactory#newNettyRequest and the sibling branch in requestUri() did not exclude WebSocket URIs, even though the CONNECT-tunnelling check in NettyRequestSender already tunnels ws:// through CONNECT exactly like https://.\n\nNote that 3.0.12 is itself affected by a separate issue, GHSA-rqf5-2wxv-rjf4, where a Digest challenge the client cannot read downgrades to Basic and sends the password in cleartext. Upgrade to 3.0.13 to pick up both fixes.","status":"published","published":"2026-10-08T16:30:58Z","modified":"2026-10-08T16:30:59Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T14:41:29.107536Z"}],"nvd":[{"id":"CVE-2026-107285","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T22:17:04.637Z","modified":"2026-10-08T20:35:31.2Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T14:12:55.142936Z"}],"osv":[{"id":"CVE-2026-107285","title":"AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T21:28:34.62Z","modified":"2026-10-28T11:06:05.456361194Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T15:44:54.933106Z"},{"id":"DEBIAN-CVE-2026-107285","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T22:17:04.637Z","modified":"2026-10-09T09:47:26.123350918Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"GHSA-3wp9-xfwm-rjjf","title":"AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel","description":"### Impact\nWhen a ws:// request is routed through an HTTP proxy with proxy authentication configured, the client tunnels the connection with an HTTP CONNECT, the same as it does for https://. Once the tunnel is open, the WebSocket upgrade request that follows is sent through the tunnel directly to the origin server, not to the proxy. The proxy-auth gate and the companion request-target selection keyed only on whether the URI was secured, which is false for ws://, so the tunnelled upgrade request incorrectly carried the proxy's Proxy-Authorization header and an absolute-form request target meant for the proxy. Any origin server reached over a proxied ws:// connection, or anyone positioned on the origin side of the wire, could recover the proxy credentials: directly for Basic, or as a replayable and offline-crackable response for Digest.\n\n### Affected versions\n* 3.x: up to and including 3.0.11\n* 2.x: up to and including 2.16.0\n\n### Patches\nFixed in 3.0.12 on the 3.x line and in 2.16.1 on the 2.x line. The preemptive Proxy-Authorization header and the absolute-form request target are no longer attached to a tunnelled ws:// upgrade; a ws:// request is now treated like wss://.\n\n### Workarounds\nDo not use proxy authentication together with ws:// requests through an HTTP proxy, or use wss:// instead.\n\n### Details\nThe proxy-auth gate in NettyRequestFactory#newNettyRequest and the sibling branch in requestUri() did not exclude WebSocket URIs, even though the CONNECT-tunnelling check in NettyRequestSender already tunnels ws:// through CONNECT exactly like https://.\n\nNote that 3.0.12 is itself affected by a separate issue, GHSA-rqf5-2wxv-rjf4, where a Digest challenge the client cannot read downgrades to Basic and sends the password in cleartext. Upgrade to 3.0.13 to pick up both fixes.","status":"published","published":"2026-10-08T16:30:58Z","modified":"2026-10-08T16:45:18.877610661Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T15:46:36.092962Z"},{"id":"UBUNTU-CVE-2026-107285","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, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.","status":"published","published":"2026-10-07T22:17:00Z","modified":"2026-10-17T12:59:47.267719438Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.130573Z"},{"id":"CLSA-2026-1791926769","title":"TuxCare security update for org.asynchttpclient (13 CVEs)","description":"TuxCare rebuilt 14 org.asynchttpclient packages to address 13 CVEs. Fixed in 2.12.1-tuxcare.1.","status":"published","published":"2026-10-13T21:26:09Z","modified":"2026-10-15T09:47:45.855594885Z","updated_at":"2026-11-02T15:43:50.599064Z"},{"id":"CLSA-2026-1793887823","title":"TuxCare security update for org.asynchttpclient (16 CVEs)","description":"TuxCare rebuilt 14 org.asynchttpclient packages to address 16 CVEs. Fixed in 2.12.3-tuxcare.2.","status":"published","published":"2026-11-05T15:10:25Z","modified":"2026-11-06T13:15:13.773820413Z","updated_at":"2026-11-06T13:44:09.891978Z"},{"id":"CLSA-2026-1794351138","title":"TuxCare security update for org.asynchttpclient:async-http-client (9 CVEs)","description":"TuxCare rebuilt org.asynchttpclient:async-http-client to address 9 CVEs. Fixed in 2.3.0-tuxcare.1.","status":"published","published":"2026-11-10T23:52:19Z","modified":"2026-11-11T01:30:02.399301115Z","updated_at":"2026-11-11T01:47:54.277886Z"}]}}