CVE-2026-33151highCWE-20 CWE-754

socket.io allows an unbounded number of binary attachments

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.7epss 0.5%

probabilidade de exploração

0.5%top 59% das CVEs

exploração observada

nãonenhuma fonte 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

Produtos afetados

socketio · socket.io

Referências

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