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OpenCTI-Platform is an open-source cyber threat intelligence project maintained by Filigran. Its core purpose is to help organizations manage threat intelligence knowledge and observables by structuring, storing, linking, and visualizing technical and non-technical threat information. It is delivered as a web platform with API and integration capabilities.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
As of 10/24/2026, OpenCTI-Platform recorded 2 security vulnerabilities in the last 90 days across 1 products, including 2 rated High or above and 0 known exploited vulnerabilities (KEV) that should be prioritized for immediate remediation.
Over the last 90 days, opencti had the most security vulnerabilities in the OpenCTI-Platform ecosystem, with 2 vulnerabilities—approximately 100% of the provider's total vulnerabilities during this period.
CVE-2026-76820OpenCTI: Synchronizer SSRF: stream fetch has no URL validationCVE-2026-76821OpenCTI: User-Controlled ReDoS in JSON Ingestion MapperCVE-2026-35211OpenCTI: Elasticsearch Painless Script Injection via GraphQL `script` filter operator allows authenticated user to exfiltrate data and cause DoSCVE-2026-35210OpenCTI: Authorization Bypass via `synchronized-upsert` HTTP Header InjectionCVE-2026-35212OpenCTI has XSS in the rendering of email-message observable body data20 Results | Page 1 of 2
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