{"id":"CVE-2026-59867","state":"PUBLISHED","title":"Kiota: Generation-time SSRF + remote/local file inclusion via unrestricted $ref","description":"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.","publishedAt":"2026-07-16T14:48:11.958Z","updatedAt":"2026-08-17T15:03:35.538Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["microsoft kiota"],"affected":[{"vendor":"microsoft","product":"kiota","versions":[{"version":">= 1.30.0, < 1.31.1","status":"affected"},{"version":"< 1.29.1","status":"affected"}]}],"references":["https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8","https://github.com/microsoft/kiota/pull/7888","https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1","https://github.com/microsoft/kiota/releases/tag/v1.32.5"],"weaknesses":["CWE-22","CWE-829","CWE-918"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59867.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59867","state":"PUBLISHED","datePublished":"2026-07-16T14:48:11.958Z","dateUpdated":"2026-08-17T15:03:35.538Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-07T15:41:53.607Z"},"containers":{"cna":{"title":"Kiota: Generation-time SSRF + remote/local file inclusion via unrestricted $ref","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."}],"affected":[{"vendor":"microsoft","product":"kiota","versions":[{"version":">= 1.30.0, < 1.31.1","status":"affected"},{"version":"< 1.29.1","status":"affected"}]}],"references":[{"url":"https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8","name":"https://github.com/microsoft/kiota/security/advisories/GHSA-rg4h-fpcp-2qm8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/microsoft/kiota/pull/7888","name":"https://github.com/microsoft/kiota/pull/7888","tags":["x_refsource_MISC"]},{"url":"https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1","name":"https://github.com/microsoft/kiota/commit/cccd798027f0a20db796b3df6c64f9897a39d7b1","tags":["x_refsource_MISC"]},{"url":"https://github.com/microsoft/kiota/releases/tag/v1.32.5","name":"https://github.com/microsoft/kiota/releases/tag/v1.32.5","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-829","lang":"en","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-17T15:03:35.538Z"},"source":{"advisory":"GHSA-rg4h-fpcp-2qm8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-16T15:35:45.668795Z","id":"CVE-2026-59867","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-16T15:37:02.124Z"}}]}}}