Medium severity · published Jun 23, 2026
CVE-2026-54302
n8n: Stored XSS in Chat Trigger Node
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the injected code executed in the n8n origin with that user's session privileges. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
< 1.123.55; >= 2.0.0-rc.0, < 2.25.7; >= 2.26.0, < 2.26.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54302
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54302
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-42h7-m79w-wvg5
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