Vulnerability · Published Sep 15, 2026 · Assigned by VulnCheck

CVE-2026-91933Flowise before 3.1.4 Authorization Bypass via openai-realtime

High 7.1

In plain English

A high-severity authorization bypass via user-controlled key in Flowise from FlowiseAI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.4%top 71.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
FlowiseAI	Flowise	0 – before 3.1.4

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

References

GitHub Security Advisory (GHSA-gggp-6qmf-xwwc) vendor-advisory
VulnCheck Advisory: Flowise before 3.1.4 Authorization Bypass via openai-realtime third-party-advisory