CVE-2026-45300

Description

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.

Traduire en français

Produits concernés

• AsyncHttpClient async-http-client
• Asynchttpclient project async-http-client

Scores CVSS

Faiblesses (CWE)

• CWE-200

Références

• https://github.com/AsyncHttpClient/async-http-client/commit/3b0e3e9e Patch
• https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.10 ProductRelease Notes
• https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm ExploitMitigationPatchVendor Advisory
• https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm ExploitMitigationPatchVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories