CVE-2026-91929 Flowise before 3.1.4 Cross-Tenant Authorization Bypass
Attackers with Enterprise access can bypass authorization to delete workspaces, modify roles, and abuse SSO secrets across tenants.
- 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-2026-91929?
CVE-2026-91929 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 versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse stored SSO secrets.
Weakness: CWE-862
Which versions are affected by CVE-2026-91929?
How do I fix CVE-2026-91929?
No fix has been published for CVE-2026-91929 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-2026-91929 being exploited?
There is no known exploitation of CVE-2026-91929 in the wild and no public exploit code.
Sources
Also known as GHSA-397m-c2vg-wm77, GHSA-7x8x-vv46-4579.