{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T22:08:54.303","vulnerabilities":[{"cve":{"id":"CVE-2026-21887","sourceIdentifier":"security-advisories@github.com","published":"2026-03-12T17:16:36.813","lastModified":"2026-03-19T17:39:31.873","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"OpenCTI es una plataforma de código abierto para gestionar el conocimiento y los observables de inteligencia de amenazas cibernéticas. Antes de la versión 6.8.16, la función de ingesta de datos de la plataforma OpenCTI acepta URLs proporcionadas por el usuario sin validación y utiliza el cliente HTTP Axios con su configuración predeterminada (allowAbsoluteUrls: true). Esto permite a los atacantes elaborar solicitudes a puntos finales arbitrarios, incluidos servicios internos, porque Axios aceptará y procesará URLs absolutas. Esto resulta en un SSRF semi-ciego, ya que las respuestas pueden no ser completamente visibles pero aún pueden impactar sistemas internos. Esta vulnerabilidad se corrige en la versión 6.8.16."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":4.0}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-918"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*","versionEndExcluding":"6.8.16","matchCriteriaId":"83864C1B-398F-4EBC-BFB1-D13968FD7D06"}]}]}],"references":[{"url":"https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-ffm6-vvph-g5f5","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}}]}