What’s Vulnerable › Vulnerabilities

CVE-2026-100605: Flowise through 3.1.4 Missing Authorization via Chat Message Routes

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-26 · updated 2026-09-30
• Weakness: CWE-862

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.

Affected products

• FlowiseAI Flowise: through 3.1.4

References

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-ppmg-4cx6-95hh
• https://www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-chat-message-routes
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-ppmg-4cx6-95hh

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