CVE-2026-34520
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 01, 2026
Vendor
unknown
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.