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CVE-2026-34513

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CVE-2026-34513

Published: Apr 1, 2026

Modified: Apr 2, 2026

PUBLISHED

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4.

VendorProductVersions

aio-libs

aiohttp

affected
< 3.13.4

Weaknesses (CWE)

CWE-770

References

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