VULNERABILITY INTELLIGENCE

CVE-2026-65591

CVSS score8.9 HIGH
EPSS probability0.69%
CISA KEVNot currently listed
Published2026-07-22
Last modified2026-10-29
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

Description

n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achieve host-level code execution as the n8n process. The legacy expression engine is the default in affected versions. Fixed in n8n 1.123.64, 2.29.8, and 2.30.1.

Weakness classification

  • CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Primary references