{"id":"CVE-2026-85717","title":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses","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, a client configured with a client-wide Realm and redire…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","cwe":["CWE-200","CWE-522"],"vendor":"AsyncHttpClient","product":"async-http-client","affected":["async-http-client >= 2.14.5, < 2.16.1","async-http-client >= 3.0.9, < 3.0.12"],"patched":["org.asynchttpclient:async-http-client 3.0.12","org.asynchttpclient:async-http-client 2.16.1"],"published":"2026-09-17","updated":"2026-09-23","sourceUpdated":"2026-09-23T19:19:40.640","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85717","references":[{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/43db7bba81430cbd61ec2dc2c7be464e0ff6a0ff","label":"security-advisories@github.com"},{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/b66757bec34def2e9867bb2b77bd848b1112abb4","label":"security-advisories@github.com"},{"url":"https://github.com/AsyncHttpClient/async-http-client/pull/2224","label":"security-advisories@github.com"},{"url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-f8m2-889x-vw4x","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-f8m2-889x-vw4x"}],"tags":["nvd","cve.org","ghsa","maven"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-23T18:32:28.993783Z"},"epss":0.00333,"epssPercentile":0.26706,"aliases":["GHSA-f8m2-889x-vw4x"],"ecosystem":"maven","ingestedAt":"2026-09-17T16:21:47.712Z","slug":"CVE-2026-85717","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-85717)\n\nAffected packages:\n\n- `org.asynchttpclient:async-http-client >= 3.0.9, <= 3.0.11`\n- `org.asynchttpclient:async-http-client >= 2.14.5, <= 2.16.0`\n\nPatched in:\n\n- `org.asynchttpclient:async-http-client 3.0.12`\n- `org.asynchttpclient:async-http-client 2.16.1`\n\nSource: https://github.com/advisories/GHSA-f8m2-889x-vw4x","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}