Vulnerability Description
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-fh4c-9rr2-p7qc
- https://www.vulncheck.com/advisories/n8n-before-expression-injection-via-resourc
FAQ
What is CVE-2026-77075?
CVE-2026-77075 is a documented vulnerability. n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored v...
How severe is CVE-2026-77075?
CVSS scoring is not yet available for CVE-2026-77075. Check NVD for updates.
Is there a patch for CVE-2026-77075?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.