CVE-2026-91930

HighCVSS 7.5/10Last modified Sep 23, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-266

Affected software

No affected versions have been published.

Timeline

Published: Sep 15, 2026
Last modified: Sep 23, 2026
NVD status: Deferred

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