CVEvulnerability
CVE-2026-45300
7.4 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-05
- Last modified
- 2026-07-23
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- Weaknesses
- CWE-200
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.
Affected configurations
• asynchttpclient project async-http-client (>= 2.0.0 < 2.15.0)
• asynchttpclient project async-http-client (>= 3.0.0 < 3.0.10)
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- 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 Product, Release Notes
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm Exploit, Mitigation, Patch, Vendor Advisory
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fmxf-pm6p-7xgm Exploit, Mitigation, Patch, Vendor Advisory