GHSA-mq44-7p77-q5h7: Input Validation
Published Aug 3, 2026
·Updated
Summary
The client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated.
Impact
A client may unexpectedly decompress WebSocket frames when explicitly opted out. This could lead to additional CPU/memory consumption, but is unlikely to be a significant issue unless a zip bomb vulnerability or similar is also present.
---
Patch: https://github.com/aio-libs/aiohttp/commit/47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6
Affected Software
1 affected componentFixes available
pip/aiohttp<=3.14.1
3.14.2
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
pip/aiohttpto a version that resolves this vulnerability.Fixed in 3.14.2 - Upgrade
Upgrade
aio-libs/aiohttpto a version that resolves this vulnerability.Patch 47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6
Event History
Aug 3, 2026
Advisory Published
via GitHub·08:40 PM
Data Sourced
via GitHub·08:40 PM
DescriptionWeaknessAffected Software