CVE-2026-27577: n8n: Expression Sandbox Escape Leads to RCE
(updated )
Additional exploits in the expression evaluation of n8n have been identified and patched following CVE-2025-68613. An authenticated user with permission to create or modify workflows could abuse crafted expressions in workflow parameters to trigger unintended system command execution on the host running n8n.
References
- docs.n8n.io/hosting/securing/overview
- github.com/advisories/GHSA-vpcf-gvg4-6qwr
- github.com/n8n-io/n8n
- github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6
- github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882e
- github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cp
- github.com/n8n-io/n8n/security/advisories/GHSA-vpcf-gvg4-6qwr
- nvd.nist.gov/vuln/detail/CVE-2026-27577
Code Behaviors & Features
Detect and mitigate CVE-2026-27577 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →