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CVE WatchJul 17, 2026

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

CVSS

9.8

Critical

EPSS

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KEV

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Exploit Today

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0-100

Published: Jul 17, 2026 · Last modified: Jul 17, 2026

EPSS · 30d

Not enough EPSS history yet.

Technical 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).

Official references
Related CVEs

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