CVE-2026-118649 n8n before 2.43.5 and 2.44.1 Authorization Bypass via Crafted Workflow ID in Data Tables
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-118649?
CVE-2026-118649 is a high-severity vulnerability in n8n-io n8n, published on 28 Oct 2026.
Official 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.
Weakness: CWE-1321
Which versions are affected by CVE-2026-118649?
How do I fix CVE-2026-118649?
No fix has been published for CVE-2026-118649 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-118649 being exploited?
There is no known exploitation of CVE-2026-118649 in the wild and no public exploit code.
Sources
Also known as GHSA-2rqj-qr72-7wwx, GHSA-wvjj-qg37-pv73.