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CVE-2026-21887 OpenCTI has a Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature

🗓️ 12 Mar 2026 17:00:43Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

OpenCTI prior to 6.8.16 allowed unvalidated user URLs in data ingestion, causing semi blind server side request forgery.

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20 May 2026 08:11Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.7
EPSS0.00212
4