CVE-2026-110844 n8n before 1.123.83 Credential Authorization Bypass via Nested Inline Sub-Workflows
Shared-workflow editors can bypass credential restrictions by embedding them in nested sub-workflows, allowing unauthorized access to sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110844?
CVE-2026-110844 is a high-severity missing authorization vulnerability in n8n-io n8n, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.
Weakness: CWE-863
Which versions are affected by CVE-2026-110844?
How do I fix CVE-2026-110844?
No fix has been published for CVE-2026-110844 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-110844 being exploited?
There is no known exploitation of CVE-2026-110844 in the wild and no public exploit code.
Sources
Also known as GHSA-r6g9-5cpp-ppwr, GHSA-v42g-p7pc-xq95.