CVE-2026-47265

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python. This vulnerability allows a remote attacker to potentially gain access to sensitive information. When a developer uses the cookies parameter on a per-request basis, cookies are sent after following a...

GHSA-HG6J-4RV6-33PG AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

Summary Cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. Impact If a developer uses the cookies parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect. Workaround If unable to...

AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

Summary Cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. Impact If a developer uses the cookies parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect. Workaround If unable to...

PT-2026-46097

Summary Cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. Impact If a developer uses the cookies parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect. Workaround If unable to...

CVE-2026-47265

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

DEBIAN-CVE-2026-47265

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

CVE-2026-47265 AIOHTTP vulnerable to cross-origin redirect with per-request cookies

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

CVE-2026-47265 AIOHTTP vulnerable to cross-origin redirect with per-request cookies

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

CVE-2026-47265

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

CVE-2026-47265

AIOHTTP prior to 3.14.0 is vulnerable: cookies provided via the cookies parameter on per-request calls are sent after following a cross-origin redirect, which may leak sensitive data if an attacker can control the redirect. Version 3.14.0 patches the issue. As a workaround, using a Cookie header ...

CVE-2026-47265

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the cookies parameter on requests are sent after following a cross-origin redirect. If a developer uses the cookies parameter on a per-request basis then sensitive data might ...

PT-2026-45836

Name of the Vulnerable Software and Affected Versions AIOHTTP versions prior to 3.14.0 Description Cookies set using the cookies parameter on requests are sent after following a cross-origin redirect. This behavior can lead to the leakage of sensitive data to an attacker if they can control the...

DOS by filling session store

The session backends created a new empty record in the session storage anytime request.session was accessed and there was a session key provided in the request cookies that didn't already have a session record. This could allow an attacker to easily create many new session records simply by sendi...