EUVD-2026-40444Published
n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-56356 · Microsoft / collected KEV context
cve-program · CVE-2026-56356
- https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279
- https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field
euvd · EUVD-2026-40444
- https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279
- https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field
nvd · CVE-2026-56356
- https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279
- https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field
osv · GHSA-3c7f-5hgj-h279
Related operational evidence
Explicit CVE identifiers- n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field · Affected-version evidence changed · 29 Oct 2026