CVE-2026-25052

n8n Improper File Access Controls Allow Arbitrary File Read by Authenticated Users

State: Published
Severity: 9.4 Critical
Published: Feb 4, 2026
Updated: Feb 5, 2026
Reserved: Jan 28, 2026

Description

n8n is an open source workflow automation platform. Prior to versions 1.123.18 and 2.5.0, a vulnerability in the file access controls allows authenticated users with permission to create or modify workflows to read sensitive files from the n8n host system. This can be exploited to obtain critical configuration data and user credentials, leading to complete account takeover of any user on the instance. This issue has been patched in versions 1.123.18 and 2.5.0.

Scores

CVSS	Score	Vector	Source
4.0	9.4 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	GitHub_M

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
n8nn8n-io	< 1.123.18Affected < 2.5.0Affected

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-gfvg-qv54-r4pc

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