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CVE-2026-27577

9.9 · CRITICAL

n8n is an open source workflow automation platform.

Published Feb 25, 2026CWE-94EPSS 1.04%

Overview

CVE-2026-27577 is a critical-severity vulnerability. It was published on February 25, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdocs.n8n.io/hosting/securing/overviewGitHubgithub.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6GitHubgithub.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882eGitHubgithub.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cpGitHubgithub.com/n8n-io/n8n/security/advisories/GHSA-vpcf-gvg4-6qwr

How CyberStrike helps

Frequently asked questions

What is CVE-2026-27577?

CVE-2026-27577 is a critical-severity vulnerability. It was published on February 25, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2026-27577?

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-27577?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-27577?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-27577 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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