FKIE_CVE-2026-21887

Vulnerability from fkie_nvd - Published: 2026-03-12 17:16 - Updated: 2026-03-19 17:39
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration (allowAbsoluteUrls: true). This allows attackers to craft requests to arbitrary endpoints, including internal services, because Axios will accept and process absolute URLs. This results in a semi-blind SSRF, as responses may not be fully visible but can still impact internal systems. This vulnerability is fixed in 6.8.16.
References
security-advisories@github.comhttps://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-ffm6-vvph-g5f5Vendor Advisory
Impacted products
Vendor Product Version
citeum opencti *
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  "id": "CVE-2026-21887",
  "lastModified": "2026-03-19T17:39:31.873",
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
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