CVE-2025-57749: n8n has a symlink traversal vulnerability in "Read/Write File" node allows access to restricted files

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-20 · updated 2026-06-17
Weakness: CWE-59

Description

n8n is a workflow automation platform. Before 1.106.0, a symlink traversal vulnerability was discovered in the Read/Write File node in n8n. While the node attempts to restrict access to sensitive directories and files, it does not properly account for symbolic links (symlinks). An attacker with the ability to create symlinks—such as by using the Execute Command node—could exploit this to bypass the intended directory restrictions and read from or write to otherwise inaccessible paths. Users of n8n.cloud are not impacted. Affected users should update to version 1.106.0 or later.

Affected products

n8n-io n8n: before 1.106.0 — fixed in 1.106.0

How to fix

Upgrade to a fixed version: n8n-io n8n 1.106.0. Check the vendor advisory for mitigations.

References

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