CVE-2026-56349

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.

References

• https://github.com/n8n-io/n8n/security/advisories/GHSA-fvfv-ppw4-7h2w
• https://www.vulncheck.com/advisories/n8n-guardrail-node-bypass-via-crafted-input