aio-libs/aiohttp · Security
aiohttp: Incomplete websocket frame payloads bypass memory limits
- GHSA ID
- GHSA-xcgm-r5h9-7989
- CVE ID
- CVE-2026-54274
- Severity
- medium
- Published
- Updated
- CVSS v4
- 6.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Description
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
CWEs
- CWE-770 · Allocation of Resources Without Limits or Throttling