CVE-2026-100605

High

Description

Flowise through 3.1.4 contains missing route-level RBAC checks on chat message endpoints that allow low-privileged API keys to read and delete chat history. Attackers with valid but low-privileged API keys can access GET and DELETE chat message routes without required flow permissions to read chat histories, prompts, model responses, and delete messages.

SeverityHigh

CVSS7.1

Exploit probability20. percentile0.3%

ProductFlowise

PublishedSep 26, 2026

First seenSep 26, 2026

Weakness typeCWE-862Missing authorization

How to fix

Vendor advisories

github.com/FlowiseAI/Flowise/security/advisories/GHSA-ppmg-4cx6-95hh

Affected products

Product	Affected versions	Fixed in
FlowiseAI Flowise	v ≤ 3.1.4	—

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