Privilege escalation in Flowiseai Flowise
CVE-2026-91930
Flowise before 3.1.4 fails to scope enterprise organization and workspace membership APIs to the caller's tenant, allowing authenticated users to supply arbitrary organization IDs. Attackers can add themselves as organization owners, create workspaces, and gain administrative access to victim organizations by exploiting insufficient tenant isolation in the organizationuser and workspace endpoints.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91930?
- CVE-2026-91930 is a high-severity vulnerability in Flowiseai Flowise, classified under Incorrect Privilege Assignment. CVSS score: 7.5/10. Published 2026-09-15.
- How severe is CVE-2026-91930?
- High severity. CVSS v3 base score is 7.5 out of 10.