CVE-2026-33151highCWE-20 CWE-754

socket.io allows an unbounded number of binary attachments

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.7epss 0.5%

probabilidad de explotación

0.5%top 59% de las CVE

explotación observada

noninguna fuente lo reporta

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.

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

Productos afectados

socketio · socket.io

Referencias

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://github.com/socketio/socket.io/security/advisories/GHSA-677m-j7p3-52f9