Medium (AgentArmorHQ estimate)Supply chainJune 16, 2026

n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes

Product: n8n
CVE: CVE-2026-54308
Affected: n8n before 2.25.7 and 2.26.0 to 2.26.1
Fixed in: 2.25.7

Last verified against sources: October 26, 2026

Am I affected?

n8n: affected n8n before 2.25.7 and 2.26.0 to 2.26.1. Fixed in 2.25.7.

Check your version: run npm ls n8n. Versions >= 2.26.0, < 2.26.2 of n8n are affected. [1]

What to do now

Upgrade to the fixed version: run npm install n8n@2.26.2 (first patched version 2.26.2). [1]
Upgrade to n8n 2.25.7 or 2.26.2 or later. [1]
Deactivate any workflows using the Microsoft Agent 365 Trigger node or Stripe Trigger node until the instance can be upgraded. [1]
Restrict network access to the n8n webhook endpoint to trusted sources only. [1]

General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.

Discuss this incident

What happened

n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes [1]
The MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. [1]

Impact

An unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. [1]

What was done

The issue has been fixed in n8n versions 2.25.7, and 2.26.2. [1]
Users should upgrade to one of these versions or later to remediate the vulnerability. [1]

Sources

GHSA-jvc7-762p-3743 — GitHub Advisory Database

Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.

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Brief

[CVE-2026-54308] n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes
Product: n8n | Affected: n8n before 2.25.7 and 2.26.0 to 2.26.1 | Fixed in: 2.25.7
Summary: n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/06/cve-2026-54308-n8n

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