EUVD-2026-23638

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. When redirect following is enabled followRedirecttrue, versions of AsyncHttpClient prior to 3.0.9 and 2.14.5 forward Authorization and Proxy-Authorization headers...

CVE-2026-40490

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. When redirect following is enabled followRedirecttrue, versions of AsyncHttpClient prior to 3.0.9 and 2.14.5 forward Authorization and Proxy-Authorization headers...

frp has an authentication bypass in HTTP vhost routing when routeByHTTPUser is used for access control

Summary frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorization to select the routeByHTTPUser backend, while the access control check uses...

GHSA-PQ96-PWVG-VRR9 frp has an authentication bypass in HTTP vhost routing when routeByHTTPUser is used for access control

Summary frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorization to select the routeByHTTPUser backend, while the access control check uses...

AsyncHttpClient leaks authorization credentials to untrusted domains on cross-origin redirects

Impact When redirect following is enabled followRedirecttrue, AsyncHttpClient forwards Authorization and Proxy-Authorization headers along with Realm credentials to arbitrary redirect targets regardless of domain, scheme, or port changes. This leaks credentials on cross-domain redirects and...

PT-2026-35123

Summary frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorization to select the routeByHTTPUser backend, while the access control check uses...

PT-2026-33219

Name of the Vulnerable Software and Affected Versions AsyncHttpClient versions prior to 2.14.5 AsyncHttpClient versions prior to 3.0.9 Description When redirect following is enabled via followRedirecttrue, the library forwards Authorization and Proxy-Authorization headers and Realm credentials to...

AIOHTTP Leaks Cookie And Proxy-Authorization Headers On Cross-origin Redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

SUSE CVE-2026-34518

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

CVE-2026-34518

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python. When AIOHTTP follows redirects to a different origin, it incorrectly retains sensitive Cookie and Proxy-Authorization headers. This oversight could lead to information disclosure, where these headers...

AIOHTTP leaks Cookie and Proxy-Authorization headers on cross-origin redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

GHSA-966J-VMVW-G2G9 AIOHTTP leaks Cookie and Proxy-Authorization headers on cross-origin redirect

Summary When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. Impact The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure in the handling of cross-origin redirects, where Cookie and Proxy-Authorization headers are not properly removed. An attacker can obtain sensitive information by causing a user to follow a redirect to a malicious...

PYSEC-2026-2100

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

UBUNTU-CVE-2026-34518

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

CVE-2026-34518

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

AZL-81773 CVE-2026-34518 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

CVE-2026-34518 AIOHTTP: Cookie and Proxy-Authorization headers leaked on cross-origin redirect

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...

CVE-2026-34518

CVE-2026-34518 affects aiohttp prior to 3.13.4: during cross-origin redirects, the client/server framework drops the Authorization header but keeps Cookie and Proxy-Authorization headers. This could expose sensitive cookie-related data across origins. The issue is fixed in aiohttp 3.13.4.

CVE-2026-34518 AIOHTTP: Cookie and Proxy-Authorization headers leaked on cross-origin redirect

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4...