Detections
Analytics
CVE-2026-128132
high
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the WebSocket reader continues parsing frames already received after the receive queue pauses the transport, and empty messages are not counted toward the queue size. With permessage-deflate, one read of compressed frames can add many megabytes of decompressed messages to the receive queue. A remote peer can send many small or compressed messages faster than the application consumes them and cause excessive memory use in a server or client. This issue is fixed in version 3.14.4.
References
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-5rmc-48h2-hvcm
https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4
https://github.com/aio-libs/aiohttp/pull/13546
https://github.com/aio-libs/aiohttp/pull/13545
https://github.com/aio-libs/aiohttp/pull/13393
https://github.com/aio-libs/aiohttp/commit/b62321b6fa264a89f4aca084ad60fc38a59ffa51
https://github.com/aio-libs/aiohttp/commit/5e54037933fa8422be5fa8a2002d118ed2d4e5e0
https://github.com/aio-libs/aiohttp/commit/0ae507423f681161efa77d20052b4054397c7fb6