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CRITICAL

CVE-2026-25049

n8n Has an Expression Escape Vulnerability Leading to RCE

CVSS v3

9.9

CRITICAL

EPSS Score

1.5 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

n8n is an open source workflow automation platform. Prior to versions 1.123.17 and 2.5.2, 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. This issue has been patched in versions 1.123.17 and 2.5.2.

Technical details

Published
2026-02-04
Last Modified
2026-02-05

Frequently asked questions

What is CVE-2026-25049?

n8n is an open source workflow automation platform. Prior to versions 1.123.17 and 2.5.2, 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. This issue has been patched in versions 1.123.17 and 2.5.2.

Is CVE-2026-25049 actively exploited?

Active exploitation of CVE-2026-25049 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-25049?

CVE-2026-25049 has a CVSS v3 base score of 9.9 (CRITICAL severity).

Is CVE-2026-25049 affecting your environment?

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