CVE-2026-103254 — n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via Resume URL Generation
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait ap…
Published: 2026-10-01 · CVSS: 7.0 · CVSS 4.0
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait approvals. Attackers with workflow creation permissions can mint valid approval URLs for gates in projects they cannot access by exploiting unresolved traversal sequences in caller-controlled node IDs, enabling cross-project approval forgery.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7