What is CVE-2026-27577?
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.
Timeline
- 2026-02-25Published to the U.S. National Vulnerability Database (NVD)
- 2026-06-17NVD record last updated
- 2026-07-28First covered in a defend.network daily briefing
Affected product
N8n
Remediation Steps
- Upgrade n8n to version 2.31.5 or 2.32.1 or later
- Review workflow editor access controls and restrict to trusted users
- Audit existing workflows for suspicious command execution
- Monitor n8n logs for unauthorized command execution attempts
References
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
- Dysphoria botnet reaches 200k devices; Arista VeloCloud, n8n zero-days exploited (2026-07-28)
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