HIGH 8.7 NVD
CVE-2026-118649
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
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.
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-wvjj-qg37-pv73
- https://www.vulncheck.com/advisories/n8n-before-2.43.5-and-2.44.1-authorization-bypass-via
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-28 via NVD.
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