High severity · published Jun 23, 2026
CVE-2026-54308
n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
7.2
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
>= 2.26.0, < 2.26.2; < 2.25.7 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54308
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54308
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-jvc7-762p-3743
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