{"id":"CVE-2026-59867","sourceIdentifier":"security-advisories@github.com","published":"2026-07-16T16:19:15.620","lastModified":"2026-10-24T20:10:00.137","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota resolved OpenAPI $ref values by fetching remote http(s) URLs and reading local absolute or out-of-tree file paths, allowing `kiota generate` on an attacker-controlled or attacker-influenced description to perform build-time SSRF, remote file inclusion, and local file inclusion by inlining external schemas such as REMOTE_KIOTA_PROP or Leaked into generated clients. This issue is fixed in version 1.29.1 and 1.32.5 by AllowedExternalOriginsStreamLoader and the --allowed-external-origins option."},{"lang":"es","value":"Kiota es un generador de código de cliente HTTP basado en OpenAPI. Antes de la versión 1.32.5, Kiota resolvía los valores $ref de OpenAPI obteniendo URLs http(s) remotas y leyendo rutas de ficheros locales absolutas o fuera del árbol, permitiendo que ’kiota generate’ en una descripción controlada o influenciada por un atacante realizara SSRF en tiempo de compilación, inclusión remota de ficheros e inclusión local de ficheros al incrustar esquemas externos como REMOTE_KIOTA_PROP o Leaked en los clientes generados. Este problema se ha solucionado en la versión 1.32.5 mediante AllowedExternalOriginsStreamLoader y la opción --allowed-external-origins."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"microsoft","product":"kiota","versions":[{"version":">= 1.30.0, < 1.31.1","status":"affected"},{"version":"< 1.29.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-16T15:35:45.668795Z","id":"CVE-2026-59867","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-22"},{"lang":"en","value":"CWE-829"},{"lang":"en","value":"CWE-918"}]}],"references":[{"url":"https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1","source":"security-advisories@github.com"},{"url":"https://github.com/microsoft/kiota/pull/7888","source":"security-advisories@github.com"},{"url":"https://github.com/microsoft/kiota/releases/tag/v1.32.5","source":"security-advisories@github.com"},{"url":"https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8","source":"security-advisories@github.com"}]}