Vulnerability Description
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, 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. The issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only, and/or deploy n8n in a hardened environment with restricted operating system privileges and network access to reduce the impact of potential exploitation. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.22 |
Related Weaknesses (CWE)
References
- https://docs.n8n.io/hosting/securing/overviewNot Applicable
- https://github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6Patch
- https://github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882ePatch
- https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cpNot Applicable
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vpcf-gvg4-6qwrMitigationVendor Advisory
FAQ
What is CVE-2026-27577?
CVE-2026-27577 is a vulnerability with a CVSS score of 9.9 (CRITICAL). n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, additional exploits in the expression evaluation of n8n have been identified and patched following CV...
How severe is CVE-2026-27577?
CVE-2026-27577 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-27577?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.