AI agent vulnerability · n8n

CVE-2026-54304: n8n: SecurityScorecard Node Leaks API Token to User-Controlled Host

highCVSS 4.0 7.1 · 3.1 7.7GHSA-rm2v-h48j-895m

Impact An authenticated user with permission to create or modify workflows and access to a SecurityScorecard credential with limited allowed domains could configure the SecurityScorecard node's report download operation to target an attacker-controlled URL.

Published Jun 16, 2026 · Updated Jul 20, 2026

Affected packages

n8n

Ecosystem: npm
Affected: < 1.123.55
Fixed in: 1.123.55
Check: npm ls n8n

n8n

Ecosystem: npm
Affected: >= 2.26.0, < 2.26.1
Fixed in: 2.26.1
Check: npm ls n8n

n8n

Ecosystem: npm
Affected: >= 2.0.0-rc.0, < 2.25.7
Fixed in: 2.25.7
Check: npm ls n8n

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Impact

An authenticated user with permission to create or modify workflows and access to a SecurityScorecard credential with limited allowed domains could configure the SecurityScorecard node's report download operation to target an attacker-controlled URL. The node attached the SecurityScorecard API token to the outbound request, causing the credential to be sent to the attacker-controlled host bypassing credential configured limitations and exfiltrating.

Patches

The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

Limit workflow creation and editing permissions to fully trusted users only.
Disable the SecurityScorecard node by adding n8n-nodes-base.securityScorecard to the NODES_EXCLUDE environment variable.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Credited to 34selen.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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