CVE-2026-65591 HIGH

CVE-2026-65591: n8n before 1.123.64 Sanitizer Bypass Remote Code Execution

Vendor N8N-Io
Product n8n
Weakness CWE-917
Published July 22, 2026
Last update July 22, 2026
View on NVD All CVEs

CVSS base score

8.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 22, 2026 CVE published
July 22, 2026 Record updated