CVE-2026-59254

Description

n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.

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Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/n8n-io/n8n/security/advisories/GHSA-2434-3x6q-8r99 https://www.vulncheck.com/advisories/n8n-external-secrets-disclosure-via-workflow-node-expressions

Frequently Asked Questions

What is CVE-2026-59254? +

n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.

How do I check if I'm vulnerable to CVE-2026-59254? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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