GitHub Advisoryadvisory · npm

GHSA-fvfv-ppw4-7h2w n8n has a Guardrail Node Bypass

MEDIUM Published 2026-02-26 Modified 2026-02-26 Official page ↗
Ecosystem
npm
Packages
n8n
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-20, CWE-693
Reviewed
2026-02-26

Affected packages

• npm n8n: < 2.10.0 → fixed in 2.10.0

Description

Impact An end user interacting with a workflow that uses the Guardrail node could craft an input that bypasses the default guardrail instructions. Patches The issue has been fixed in n8n version 2.10.0. Users should upgrade to this version or later to remediate the vulnerability. Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: • Limit access to trusted users. • Review asses the practical impact of guardrail bypasses in your usecase and adjust your workflow accordingly. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-693 Protection Mechanism Failure weakness

References