{"id":"CVE-2026-59864","revision":"1f09956140e1421aa72609113977049c","records":[{"revision":"1f09956140e1421aa72609113977049c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-59864","aliases":[],"title":"Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions","description":"Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, `kiota plugin add` and `kiota plugin generate` (with `-t APIPlugin`) emitted attacker-controlled static_template.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin manifests without path validation, allowing ../, absolute, rooted, UNC, Windows drive, or URI paths in response_semantics.static_template.file to cause path traversal or out-of-package file inclusion when the generated plugin was deployed. This issue is fixed in version 1.29.1 and 1.32.5.","state":0,"publishedAt":"2026-07-16T14:45:36.247+00:00","modifiedAt":"2026-08-17T15:02:52.269+00:00","affected":[{"ecosystem":"Vendor product","name":"kiota","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"microsoft\",\n                    \"product\": \"kiota\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.30.0, < 1.31.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 1.29.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"}],"references":["https://github.com/microsoft/kiota/security/advisories/GHSA-4jwf-m4wg-8p66","https://github.com/microsoft/kiota/pull/7892","https://github.com/microsoft/kiota/commit/9a185994a4e549b7bba3cc2beffb9736aa902e79","https://github.com/microsoft/kiota/releases/tag/v1.32.5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59864","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-59864","identifiers":["CVE-2026-59864"]},"retained":false,"historicalAffected":[]}],"coverage":[]}