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CVE-2026-91930

Flowise before 3.1.4 Cross-Tenant Organization Admin Takeover

CVSS 3.1 7.5 HIGHCVSS 4.0 7.7 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-91930

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91930

Published

Flowise

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "FlowiseAI",
                    "product": "Flowise",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/flowise",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "3.1.4"
                        },
                        {
                            "version": "3.1.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON