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CVE-2026-27577

Severity
CRITICAL
CVSS
9.4
EPSS
0.08586
Risk score
40.61
CISA KEV
No
PoC
Yes
Published
2026-02-25
Modified
2026-07-28
First seen
2026-08-05
Aliases
EUVD-2026-8761, GHSA-VPCF-GVG4-6QWR
Products
n8n-io:n8n 2.0.0, < 2.9.3, n8n-io:n8n 2.10.0, < 2.10.1, n8n-io:n8n < 1.123.22, n8n:n8n
Sources
nvd CVE-2026-27577
euvd EUVD-2026-8761
github 7ab64cf7d6764fd841a9bc6f|CVE-2026-27577

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.

References