CVE-2026-107285

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.

• CWE-319
• CWE-522

• https://github.com/AsyncHttpClient/async-http-client/commit/6e9cb75a9b7259353f983fc90ca28b1da3742e18
• https://github.com/AsyncHttpClient/async-http-client/commit/c4feab0f7f86d61505a48e40d383c8a375a22e18
• 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
• https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-3wp9-xfwm-rjjf

Published

Oct 7, 2026

Last Modified

Oct 7, 2026

Status

Received

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