{"id":"CVE-2026-85717","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-85717","summary":"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,…","details":"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.","published":"2026-09-17T16:18:15.960","modified":"2026-09-17T16:18:15.960","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/43db7bba81430cbd61ec2dc2c7be464e0ff6a0ff","label":"AsyncHttpClient/async-http-client@43db7bb"},"references":[{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/commit/43db7bba81430cbd61ec2dc2c7be464e0ff6a0ff"},{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/commit/b66757bec34def2e9867bb2b77bd848b1112abb4"},{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/pull/2224"},{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-f8m2-889x-vw4x"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-17T16:18:15.960"}}