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CVE-2026-8505

9.8 critical SSVC exploitation: none Modified
NVD · CVE.org

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).

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.8 · langflowNVD modified 2026-10-24 20:10

Affected (CPE criteria) 1

  • cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

References 1