# CVE-2026-91933

## Summary

- **CVE ID:** CVE-2026-91933
- **Severity:** HIGH
- **CVSS Score:** 7.6 (CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-639
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## Description

Flowise before 3.1.4 fails to enforce workspace-level authorization checks in openai-realtime endpoints, allowing authenticated users to access tools from ChatFlows in other workspaces by supplying an unscoped chatflowid. Attackers can invoke GET and POST requests to retrieve tool definitions and execute tools from victim workspaces, triggering external side effects and accessing sensitive tool outputs.

## Affected Products

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

## References

- [CNA](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-gggp-6qmf-xwwc)
- [CNA](https://www.vulncheck.com/advisories/flowise-before-3.1.4-authorization-bypass-via-openai-realtime)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.33%
- **EPSS Percentile:** 25.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._