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CVE-2026-90533

Flowise before 3.1.4 Broken Access Control via organizationuser

CVSS 4.0 6.0 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90533

Published

Flowise before 3.1.4 contains a broken access control vulnerability in GET /api/v1/organizationuser that allows any authenticated organization member to retrieve the organization owner's full user record including bcrypt password hash and temporary tokens. Attackers can query the endpoint with any user ID to obtain the owner's credential hash for offline cracking, enabling account takeover of the highest-privileged account.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90533

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