Asynchttpclient Project Async-http-client vulnerabilities
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Published CVEs affecting Asynchttpclient Project Async-http-client: 1 record(s), with affected versions and fixes.cpe:2.3:a:asynchttpclient_project:async-http-client
CVE-2026-45300
High · 7.4
CWE-200 Jun 5, 2026
async-http-client: Cookie header not stripped on cross-origin redirect
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Versions on the 2.x branch prior to 2.15.0 and the 3.x branch prior to 3.0.10 leak `Cookie` headers to cross-origin redirect targets. When following a redirect to a different origin, the `propagatedHeaders()` method in `Redirect30xInterceptor.java` strips `Authorization` and `Proxy-Authorization` headers but does not strip the `Cookie` header, causing session cookies and other sensitive cookie values to be sent to attacker-controlled servers. Versions 2.15.0 and 3.0.10 patch the issue.