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GHSA-xcgm-r5h9-7989

aiohttp: Incomplete websocket frame payloads bypass memory limits

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-54274

Packages

EcosystemPackageAffectedFixed in
PyPI aiohttp < 3.14.1 3.14.1

Details

As written in the advisory (Markdown source, shown as plain text).

### Summary If an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. ### Impact If a web application has WebSocket endpoints, it may be possible for an attacker to execute a DoS attack through excessive memory use. ----- Patch: https://github.com/aio-libs/aiohttp/commit/14b6ee851fb16ec199acb950de0c82d476799e7d

References

External links from the advisory. They lead to third-party sites.