Vulnerability Details CVE-2026-8505
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 44.5%
CVSS Severity
CVSS v3 Score 9.8