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CVE-2026-8505

CRITICAL CVSS: 9.8 Published: 2026-07-17 Modified: 2026-07-23

Description

IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUTH_ENABLE configuration is set to False (which is the default setting). This allows a remote attacker who knows a flow's UUID to execute it as if they were the owner, potentially leading to Remote Code Execution (RCE).

Affected Platforms

Microsoft WindowsLinux Linux KernelLangflow LangflowApple Macos

Weakness Type

CWE-306, CWE-306

References