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.

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History

Sun, 20 Sep 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title Flowise before 3.1.4 Cross-Tenant Organization Admin Takeover
First Time appeared Flowiseai
Flowiseai flowise
Weaknesses CWE-266
CPEs cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*
Vendors & Products Flowiseai
Flowiseai flowise
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-20T00:35:30.161Z

Reserved: 2026-09-15T11:06:02.263Z

Link: CVE-2026-91930

cve-icon Vulnrichment

Updated: 2026-09-20T00:30:34.907Z

cve-icon NVD

Status : Deferred

Published: 2026-09-15T16:17:43.743

Modified: 2026-09-23T17:17:47.063

Link: CVE-2026-91930

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T16:45:07Z

Weaknesses