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CVE-2026-59881

Vulnerability Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.

Vulnerability Details

Published Date
Last Modified
CWE ID
CWE-20
Source
NVD
Vendor
aio-libs
Product
aiohttp

External References

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