HIGH

CVE-2026-69185

2026-08-03 CVSS v3.1

CVSS

7.5

Description

Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 4.2.7, 3.4.5, and 3.3.6, 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 vulnerability is fixed in 4.2.7, 3.4.5, and 3.3.6.

Weakness (CWE)

CWE-20 Improper Input Validation

CWE-754

EPSS Score

0.5%

Probability of exploitation in next 30 days

42.1th percentile

References

https://github.com/socketio/socket.io/commit/7c6ef571a00656718e9e05e3b948fd1758b2a7b4 https://github.com/socketio/socket.io/commit/9c6323e5cde41bd75df3379b5fc9293664a5f240 https://github.com/socketio/socket.io/commit/ced94ffa3ac020a8f3c14eb98a3bf34acb14d291 https://github.com/socketio/socket.io/security/advisories/GHSA-2m8v-j782-fhvr

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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