AI agent vulnerability · n8n

CVE-2026-65592: n8n: Stored DOM XSS via Resource Locator `cachedResultUrl`

highCVSS 4.0 8.4GHSA-9wcp-9r3j-383q

Impact The Resource Locator passes the workflow-persisted cachedResultUrl to window.open() without scheme validation. When a victim opens the crafted workflow and interact with external links, the JavaScript payload runs in the victim's browser. Patches The issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Published Jul 22, 2026

Affected packages

n8n

Ecosystem: npm
Affected: < 1.123.64
Fixed in: 1.123.64
Check: npm ls n8n

n8n

Ecosystem: npm
Affected: >= 2.30.0, < 2.30.1
Fixed in: 2.30.1
Check: npm ls n8n

n8n

Ecosystem: npm
Affected: >= 2.0.0-rc.0, < 2.29.8
Fixed in: 2.29.8
Check: npm ls n8n

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Impact

The Resource Locator passes the workflow-persisted cachedResultUrl to window.open() without scheme validation. When a victim opens the crafted workflow and interact with external links, the JavaScript payload runs in the victim's browser.

Patches

The issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. 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:

Restrict workflow creation and editing permissions to fully trusted users only.
Audit existing workflows for unexpected cachedResultUrl values containing non-HTTP(S) schemes.

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

Credited to odgrso.

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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