Check Point Advisories

Kestra Remote Code Execution (CVE-2026-53576)

Vulnerability
Protection

Check Point Reference:	CPAI-2026-10476
Date Published:	30 Aug 2026
Severity:	Critical
Last Updated:	Sunday 30 August, 2026
Source:
Industry Reference:	CVE-2026-53576
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Kestra < 1.0.45 Kestra 1.1.0 and later, prior to 1.3.21
Vulnerability Description	A remote code execution vulnerability in Kestra allows unauthenticated attackers to create and execute flows containing malicious tasks, potentially gaining root access to the host Docker daemon.

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

In the IPS tab, click Protections and find the Kestra Remote Code Execution (CVE-2026-53576) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Application Servers Protection Violation.
Attack Information: Kestra Remote Code Execution (CVE-2026-53576)