{"id":"CVE-2026-85717","published":"2026-09-17T16:18:15.960","lastModified":"2026-09-23T19:19:40.640","description":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.14.5 to 2.16.0 and from 3.0.9 to 3.0.11, a client configured with a client-wide Realm and redirect following can disclose credentials after a cross-origin redirect because the Interceptors authentication path falls back to the client configuration after redirect handling clears the per-exchange realm. If the attacker-controlled target returns 401, the client can send Basic or Digest credentials or a Negotiate or NTLM token to that origin. Per-request realms are stripped correctly, and this issue is a residual bypass of the earlier cross-origin credential-stripping fixes. This issue is fixed in versions 2.16.1 and 3.0.12.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","cwes":["CWE-200","CWE-522"],"vendors":[],"products":[],"references":[{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/43db7bba81430cbd61ec2dc2c7be464e0ff6a0ff","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/b66757bec34def2e9867bb2b77bd848b1112abb4","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/pull/2224","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-f8m2-889x-vw4x","tags":[]}],"exploitRefs":[{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/43db7bba81430cbd61ec2dc2c7be464e0ff6a0ff","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/b66757bec34def2e9867bb2b77bd848b1112abb4","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/pull/2224","tags":[]},{"url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-f8m2-889x-vw4x","tags":[]}],"hasPoc":true,"ai":null}