XSS in N8n
CVE-2025-58177
n8n is an open source workflow automation platform. From 1.24.0 to before 1.107.0, there is a stored cross-site scripting (XSS) vulnerability in @n8n/n8n-nodes-langchain.chatTrigger. An authorized user can configure the LangChain Chat Trigger node with malicious JavaScript in the initialMessages field and enable public access so that the payload is executed in the browser of any user who visits the resulting public chat URL. This can be used for phishing or to steal cookies or other sensitive data from users accessing the public chat link. The issue is fixed in version 1.107.0. Updating to 1.107.0 or later is recommended. As a workaround, the affected chatTrigger node can be disabled. No other workarounds are known.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- N8n
- N8n-Io N8n — versions >= 1.24.0, < 1.107.0
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-mvh4-2cm2-6hpg (Vendor Advisory)
- github.com/n8n-io/n8n/pull/18148 (Issue Tracking)
- github.com/n8n-io/n8n/commit/d4ef191be0b39b65efa68559a3b8d5dad2e102b2 (Patch)
Frequently asked questions
- What is CVE-2025-58177?
- CVE-2025-58177 is a medium-severity vulnerability in N8n, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-09-15.
- How severe is CVE-2025-58177?
- Medium severity. CVSS v3 base score is 5.4 out of 10.