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Flowise CVE-2026-91930

| EUVDEUVD-2026-78788 HIGH
Incorrect Privilege Assignment (CWE-266)
2026-09-15 VulnCheck GHSA-2jfv-qfvv-395r
Information Disclosure Flowise Flowiseai
7.7
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
7.7 HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

6
Analysis Updated
Sep 15, 2026 - 16:32 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Sep 15, 2026 - 16:22 vuln.today
cvss_changed
CVSS changed
Sep 15, 2026 - 16:22 NVD
7.5 (HIGH) 7.7 (HIGH)
Patch available
Sep 15, 2026 - 16:03 EUVD
Analysis Generated
Sep 15, 2026 - 16:00 vuln.today
CVE Published
Sep 15, 2026 - 15:17 cve.org
HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

Authenticated users of Flowise before 3.1.4 can escalate to organization owner across tenant boundaries by supplying arbitrary organization IDs to the organizationuser and workspace membership endpoints, because those APIs are not scoped to the caller's own tenant. The result is full administrative control over victim organizations, including the ability to create workspaces and reach the victim tenant's resources. …

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CVE-2026-91930 vulnerability details – vuln.today
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