# CVE-2026-90533

## Summary

- **CVE ID:** CVE-2026-90533
- **Severity:** MEDIUM
- **CVSS Score:** 6 (CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-862
- **Published:** Sep 12, 2026
- **Last Modified:** Sep 14, 2026

## Description

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.

## Affected Products

- FlowiseAI — Flowise (0)
- FlowiseAI — Flowise (3.1.4)

## References

- [CNA](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fhxm-xxcx-g6x3)
- [CNA](https://www.vulncheck.com/advisories/flowise-before-3.1.4-broken-access-control-via-organizationuser)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 9.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._