CVE-2026-118649
HIGH
NVD
CVSS Score
8.3
Severity
HIGH
Published
Oct 28, 2026
Vendor
unknown
Description
n8n before 2.43.5 and 2.44.x before 2.44.1 accepts a client-supplied workflow ID and caches each workflow's owner project in memory by that ID, so a crafted ID such as __proto__ makes the Data Table project check match every project. An authenticated member who can create and run workflows can list, read, modify, and delete Data Table rows in all projects of the instance.