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CVE-2026-91930 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.x Severity and Vector Strings:

VolerionCVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-pprx-4prj-35mj	[email protected]	AdvisoryExploitTechnical AnalysisVendor
https://www.vulncheck.com/advisories/flowise-before-3.1.4-cross-tenant-organization-admin-takeover	[email protected]	AdvisoryVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-266	Incorrect Privilege Assignment	[email protected]

Affected Products

Product	Versions
Flowise	<= 3.1.3 (semver)
CPE cpe:2.3:a:flowiseai:flowise:::::::: Remediation Upgrade: 3.1.4moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 20, 2026	CVE Modified	CISA-ADP
Sep 15, 2026	New CVE Received	[email protected]