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CVE-2026-33151
Published: Mar 20, 2026
Modified: Mar 23, 2026
PUBLISHED
Description
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This issue has been patched in versions 3.3.5, 3.4.4, and 4.2.6.
| Vendor | Product | Versions |
|---|---|---|
socketio | socket.io | affected < 3.3.5affected >= 3.4.0, < 3.4.4affected >= 4.0.0, < 4.2.6 |
References
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