VDB
CVE-2026-8505
CVE-2026-8505
PUBLISHED
CVSS 9.8 CRITICAL
Reported by ibm · Published July 17, 2026
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).
Risk Scores
CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 |
| IBM | Langflow OSS | 1.0.0, 1.0.0, 1.0.0 |
Timeline
- Jul 2, 2026 CVE Published
- Jul 18, 2026 EPSS Score