Check Point Advisories

Flowise Command Injection (CVE-2026-40933)

Check Point Reference: CPAI-2026-8028
Date Published: 1 Jul 2026
Severity: High
Last Updated: Wednesday 01 July, 2026
Source:
Industry Reference:CVE-2026-40933
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Flowise prior to 3.1.0
Vulnerability Description A command injection vulnerability in Flowise allows attackers to execute arbitrary commands on the underlying OS. This vulnerability exists due to unsafe serialization of stdio commands in the MCP adapter, enabling authenticated attackers to bypass input sanitization checks and execute malicious commands. This issue is resolved in version 3.1.0.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Flowise Command Injection (CVE-2026-40933) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Application Intelligence.
Attack Information:  Flowise Command Injection (CVE-2026-40933)

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