GHSA-677m-j7p3-52f9High
socket.io allows an unbounded number of binary attachments
🔗 CVE IDs covered (1)
📋 Description
Impact
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.
Patches
| Version range | Used by | Fixed version |
|------------------|--------------------------------------------|---------------|
| >=4.0.0 <4.2.6 | [email protected] and [email protected] | 4.2.6 |
| >=3.4.0 <3.4.4 | [email protected] | 3.4.4 |
| <3.3.5 | [email protected] | 3.3.5 |
Workarounds
There is no known workaround except upgrading to a safe version.
For more information
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🎯 Affected products3
- npm/socket.io-parser:< 3.3.5
- npm/socket.io-parser:>= 3.4.0, < 3.4.4
- npm/socket.io-parser:>= 4.0.0, < 4.2.6
🔗 References (6)
- https://github.com/socketio/socket.io/security/advisories/GHSA-677m-j7p3-52f9
- https://github.com/socketio/socket.io/commit/719f9ebab0772ffb882bd614b387e585c1aa75d4
- https://github.com/socketio/socket.io/commit/9d39f1f080510f036782f2177fac701cc041faaf
- https://github.com/socketio/socket.io/commit/b25738c416c4e32fbff62ee182afa8f6d0dacf78
- https://nvd.nist.gov/vuln/detail/CVE-2026-33151
- https://github.com/advisories/GHSA-677m-j7p3-52f9