CVE-2026-54308 n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
Unauthenticated attackers can forge webhook payloads to execute workflows with controlled data in n8n Microsoft Agent 365 and Stripe triggers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-54308?
CVE-2026-54308 is a medium-severity missing authorization vulnerability in N8n N8n, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.
Weakness: CWE-290
Which versions are affected by CVE-2026-54308?
4 open source packages ship an affected version, including n8n. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
n8n npm | All versions | 2.25.7 |
n8n npm | All versions | 2.25.7 |
n8n npm | From 2.26.0 | 2.26.2 |
n8n npm | From 2.26.0 | 2.26.2 |
Products include N8n N8n.
How do I fix CVE-2026-54308?
Upgrade n8n to a fixed version for your release line: 2.25.7 or 2.26.2.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-54308 being exploited?
There is no known exploitation of CVE-2026-54308 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-jvc7-762p-3743, MINI-x47x-gx24-xpc6, ROOT-APP-NPM-CVE-2026-54308.