CVE-2026-91933 Flowise before 3.1.4 Authorization Bypass via openai-realtime
Authenticated users can bypass workspace restrictions to access and execute tools from other workspaces, leading to data exposure and side effects.
- 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-2026-91933?
CVE-2026-91933 is a high-severity missing authorization vulnerability in FlowiseAI Flowise, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Flowise before 3.1.4 fails to enforce workspace-level authorization checks in openai-realtime endpoints, allowing authenticated users to access tools from ChatFlows in other workspaces by supplying an unscoped chatflowid. Attackers can invoke GET and POST requests to retrieve tool definitions and execute tools from victim workspaces, triggering external side effects and accessing sensitive tool outputs.
Weakness: CWE-639
Which versions are affected by CVE-2026-91933?
How do I fix CVE-2026-91933?
No fix has been published for CVE-2026-91933 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-2026-91933 being exploited?
There is no known exploitation of CVE-2026-91933 in the wild and no public exploit code.
Sources
Also known as GHSA-g5x4-4x4f-qgq9, GHSA-gggp-6qmf-xwwc.