# CVE-2026-56349: n8n - Guardrail Node Bypass via Crafted Input

> CVE-2026-56349: n8n - Guardrail Node Bypass via Crafted Input. CVSS 6.3 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-56349
Last updated: 2026-10-25T15:10:00Z

- Published: 2026-07-15 11:25 UTC · Updated: 2026-10-25 15:10 UTC · Assigner: VulnCheck
- CVSS: 6.3 (CVSS 4.0) · Severity: Medium
- EPSS: 0.47%, 41th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20

## Description

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.

## Affected vendors and products

- n8n: n8n

## Tracked companies

- [n8n](https://rewindex.com/company/n8n.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-56349)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-56349)
- [https://github.com/n8n-io/n8n/security/advisories/GHSA-fvfv-ppw4-7h2w](https://github.com/n8n-io/n8n/security/advisories/GHSA-fvfv-ppw4-7h2w)
- [https://www.vulncheck.com/advisories/n8n-guardrail-node-bypass-via-crafted-input](https://www.vulncheck.com/advisories/n8n-guardrail-node-bypass-via-crafted-input)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-56349 · Markdown: https://rewindex.com/cve/CVE-2026-56349.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-56349 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:37.213Z