Title: async-http-client de AsyncHttpClient, Description: La biblioteca AsyncHttpClient (AHC) permite a las aplicaciones Java ejecutar fácilmente solicitudes HTTP y procesar asincrónicamente respuestas HTTP. Las versiones de la rama 2.x anteriores a la 2.15.0 y de la rama 3.x anteriores a la 3.0.10 filtran encabezados 'Cookie' a destinos de redirección de origen cruzado. Al seguir una redirección a un origen diferente, el método 'propagatedHeaders()' en 'Redirect30xInterceptor.java' elimina los encabezados 'Authorization' y 'Proxy-Authorization' pero no elimina el encabezado 'Cookie', lo que provoca que las cookies de sesión y otros valores de cookie sensibles se envíen a servidores controlados por el atacante. Las versiones 2.15.0 y 3.0.10 corrigen el problema.

{"timestamp":"2026-06-08T14:33:01.603361Z","id":"CVE-2026-45300","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"AsyncHttpClient","product":"async-http-client","versions":[{"version":">= 3.0.0.Beta1, < 3.0.10","status":"affected"},{"version":">= 2.0.0, < 2.15.0","status":"affected"}]}]

OR
          *cpe:2.3:a:asynchttpclient_project:async-http-client:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.15.0
          *cpe:2.3:a:asynchttpclient_project:async-http-client:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.10

CISA-ADP: https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm Types: Exploit, Mitigation, Patch, Vendor Advisory

GitHub, Inc.: https://github.com/AsyncHttpClient/async-http-client/commit/3b0e3e9e Types: Patch

GitHub, Inc.: https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.10 Types: Product, Release Notes

GitHub, Inc.: https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm Types: Exploit, Mitigation, Patch, Vendor Advisory

https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm

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.

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

CWE-200

https://github.com/AsyncHttpClient/async-http-client/commit/3b0e3e9e

https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.10

https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm