CVE-2026-56349CWE-20

n8n - Guardrail Node Bypass via Crafted Input

Medium · published July 15, 2026

CVSS v4.0
6.3
EPSS
0%
Percentile
39.9
In the wild
Unconfirmed
What it is

n8n before version 2.10.0 contains an input validation vulnerability in the Guardrail node that allows attackers to bypass default guardrail instructions. End users can craft malicious inputs to circumvent guardrail protections and compromise workflow integrity.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00472 · 39.9th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-07-15T11:25Z
EPSS history
Timeline
  • 15 JUL 11:25Z
    n8n - Guardrail Node Bypass via Crafted Input
    cvelistv5