Check Point Advisories

Langflow Directory Traversal (CVE-2026-5027)

Vulnerability
Protection

Check Point Reference:	CPAI-2026-8005
Date Published:	1 Jul 2026
Severity:	High
Last Updated:	Wednesday 01 July, 2026
Source:
Industry Reference:	CVE-2026-5027
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Langflow 0
Vulnerability Description	A directory traversal vulnerability in Langflow allows attackers to write files to arbitrary locations on the filesystem using path traversal sequences ('../').

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 Langflow Directory Traversal (CVE-2026-5027) 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: Web Server Enforcement Violation.
Attack Information: Langflow Directory Traversal (CVE-2026-5027)