Authorization bypass through user-controlled key in Langflow Desktop - CVE-2026-4503

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Main Vulnerability Database Vulnerabilities #VU128729

Authorization bypass through user-controlled key in Langflow Desktop - CVE-2026-4503

Published: May 1, 2026


Vulnerability identifier: #VU128729
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-4503
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Langflow Desktop
Software vendor:
IBM Corporation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an indirect object reference through a user-controlled key. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install updates from vendor's website.

External links