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CVE PROGRAM SOURCE RECORD2.7 Low

CVE-2026-34513

AIOHTTP: Denial of Service (DoS) via Unbounded DNS Cache in TCPConnector

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

aio-libs aiohttp

  • < 3.13.4affected

References