CVE-2026-91933

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

ProductFlowise

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

FlowiseAI Flowise3.1.4 or later

Vendor advisories

github.com/FlowiseAI/Flowise/security/advisories/GHSA-gggp-6qmf-xwwc

Affected products

Product	Affected versions	Fixed in
FlowiseAI Flowise	v < 3.1.4	3.1.4

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