Bug 2449789 (CVE-2026-33151) - CVE-2026-33151 socket.io: Socket.IO: Denial of Service due to excessive buffering of specially crafted packets
Summary: CVE-2026-33151 socket.io: Socket.IO: Denial of Service due to excessive buffe...
Keywords:
Status: NEW
Alias: CVE-2026-33151
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2450265 2450267 2450268 2450270 2450272 2450266 2450269 2450271
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-20 21:02 UTC by OSIDB Bzimport
Modified: 2026-03-23 09:21 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-03-20 21:02:59 UTC 
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.
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