Security Advisory

CVE-2026-34520

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-01 20:27:48

Last updated 2026-04-04 03:13:48

Assigner GitHub_M

State PUBLISHED

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4.

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