6.6
Medium
CVE-2026-47265 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
Description
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 be leaked to an attacker if they manage to control a redirect. Version 3.14.0 patches the issue. If unable to upgrade, using a `Cookie` header in the `headers` parameter is not vulnerable.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| aiohttp 3.14 | earliest → < 3.14.0 | 3.14.0 |
References
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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