Multiple Critical Vulnerabilities in Langflow Enable Remote Code Execution
IBM disclosed three severe vulnerabilities in the open-source Langflow project on August 24, 2026. The flaws affect server instances and allow attackers to execute arbitrary code under specific conditions. CVE-2026-19286 is a code injection issue in the Agent-to-Agent (A2A) public endpoint that bypasses existing restrictions when authentication is disabled. CVE-2026-19295 permits authenticated users to evade custom component restrictions via eval injection in flow templates, leading to OS-level command execution. CVE-2026-18729 stems from insufficient input validation and lets low-privileged authenticated users bypass protected paths to run arbitrary code on the server. Patches addressing all three issues are now available.
Security NEXTAug 31, 2026Translated from Japanese