CVE-2025-58177 n8n stored cross-site scripting in LangChain Chat Trigger node initialMessages parameter
An authorized user can inject malicious scripts into the LangChain Chat Trigger node, leading to XSS attacks against visitors of the public chat URL.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-58177?
CVE-2025-58177 is a medium-severity cross-site scripting vulnerability in N8n N8n, published on 15 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-58177?
2 open source packages ship an affected version, including n8n. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
n8n npm | From 1.24.0 | 1.107.0 |
n8n npm | From 1.24.0 | 1.107.0 |
Products include N8n N8n.
How do I fix CVE-2025-58177?
Upgrade n8n to 1.107.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-58177 being exploited?
There is no known exploitation of CVE-2025-58177 in the wild and no public exploit code.
Other vulnerabilities in N8n N8n
- CVE-2025-68613 n8n Improper Control of Dynamically-Managed Code Resources
- CVE-2026-21877 n8n is vulnerable to Remote Code Execution via Arbitrary File Write
- CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling
- CVE-2026-1470 n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution
- CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node
Sources
Also known as GHSA-mvh4-2cm2-6hpg.