{"id":"CVE-2026-73851","summary":"Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)","details":"Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.34.0, an attacker who controls or tampers with the OpenAPI description consumed by Kiota can supply a file reference that resolves outside the manifest package (e.g. ../../../../etc/passwd, an absolute path, or a file:// / http(s):// URI). When the generated manifest is deployed and consumed by an AI host, this can lead to inclusion or disclosure of files outside the intended package boundary. This vulnerability is fixed in 1.29.1 and 1.34.0.","aliases":["GHSA-p5rm-jg5c-8c77"],"modified":"2026-08-19T12:09:58.784879Z","published":"2026-08-17T15:11:39.724Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-22","CWE-829"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73851.json"},"references":[{"type":"WEB","url":"https://github.com/microsoft/kiota/releases/tag/v1.29.1"},{"type":"WEB","url":"https://github.com/microsoft/kiota/releases/tag/v1.34.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73851.json"},{"type":"ADVISORY","url":"https://github.com/microsoft/kiota/security/advisories/GHSA-p5rm-jg5c-8c77"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73851"},{"type":"REPORT","url":"https://github.com/microsoft/kiota/issues/7912"},{"type":"FIX","url":"https://github.com/microsoft/kiota/commit/430008e9d700b3fe80f206c672415cfbd8e830e7"},{"type":"FIX","url":"https://github.com/microsoft/kiota/commit/de3d18d9fe31ced4ac749728d3a2f94811f59268"},{"type":"FIX","url":"https://github.com/microsoft/kiota/pull/7910"},{"type":"FIX","url":"https://github.com/microsoft/kiota/pull/7913"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/microsoft/kiota","events":[{"introduced":"6ccf6da832742181cba0ab02588c5795b2185e13"},{"introduced":"0"},{"fixed":"9d4f80e2006eeebc2b3a641d92edecdad70be2de"},{"fixed":"70cd8bcba3ff1815f93187f3eb80ef96fd194d46"},{"fixed":"430008e9d700b3fe80f206c672415cfbd8e830e7"},{"fixed":"de3d18d9fe31ced4ac749728d3a2f94811f59268"}],"database_specific":{"extracted_events":[{"introduced":"1.30.0"},{"fixed":"1.34.0"},{"introduced":"0"},{"fixed":"1.29.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.29.0","v1.33.0","v1.32.5","v1.32.4","v1.32.3","v1.32.2","v1.32.1","v1.32.0","v1.31.1","v1.31.0","v1.30.0","v1.27.0","v1.27.0-preview.202506050001","v1.27.0-preview.202505290001","v1.27.0-preview.202505220001","v1.26.1","v1.26.0","v1.25.1-preview.202505010001","v1.25.1-preview.202504240001","v1.25.1-preview.202504170001","v1.25.1-preview.202504100001","v1.25.1","v1.24.3","v1.24.2","v1.24.1","v1.24.0","v1.24.0-preview.202503060001","v1.24.0-preview.202502270001","v1.23.0","v1.23.0-preview.202501310001","v1.22.3","v1.22.2","v1.22.1","v1.22.0","v1.22.0-preview.202412270001","v1.22.0-preview.202412190001","v1.22.0-preview.202412120001","v1.21.0","v1.21.0-preview.202411290004","v1.21.0-preview.202411290003","v1.21.0-preview.202411220001","v1.21.0-preview.202411150001","v1.20.0","v1.20.0-preview.202410240001","v1.20.0-preview.202410180001","v1.19.1","v1.20.0-preview.202410100001","v1.19.0","v1.19.0-preview.202409260001","v1.19.0-preview.202409200002","v1.19.0-preview.202409200001","v1.19.0-preview.202409120001","v1.18.0","v1.18.0-preview.202408290001","v1.18.0-preview.202408220001","v1.18.0-preview.202408150001","v1.17.0","v1.17.0-preview.202408010001","v1.16.0","v1.16.0-preview.202406270001","v1.16.0-preview.202406210001","v1.16.0-preview.202406130001","v1.15.0","v1.15.0-preview.202405310001","v1.15.0-preview.202405230001","v1.15.0-preview.202405160001","v1.15.0-preview.202405090001","v1.14.0","v1.14.0-preview.202404250001","v1.14.0-preview.202404180001","v1.14.0-preview.202404120001","v1.13.0-preview.202403280001","v1.13.0","v1.13.0-preview.202403210001","v1.12.0","v1.12","v1.12.0-preview.202402290001","v1.12.0-preview.202402220002","v1.11.1-preview.202402220001","v1.11.1-preview.202402150001","v1.11.1-preview.202402080001","v1.11.1","v1.11.0","v1.11.0-preview.202401300001","v1.10.1","v1.10.0","v1.10.0-preview.202312220001","v1.9.1","v1.9.0-preview.202311300001","v1.9.0-preview.202311230001","v1.9.0-preview.202311160001","v1.8.2","v1.8.1","v1.8.0","v1.8.0-preview.202310260001","v1.8.0-preview.202310190001","v1.7.0","v1.8.0-preview.202310120001","v1.7.0-preview.202309280001","v1.7.0-preview.202309210001","v1.6.1","v1.6.0","v1.6.0-preview.202309070001","v1.6.0-preview.202308310001","v1.6.0-preview.202308240001","v1.5.1","v1.5.0","v1.5.0-preview.202308030001","v1.5.0-preview.202307270001","v1.5.0-preview.202307200001","v1.5.0-preview.202307170006","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.1","v1.1.0","v1.0.1","v1.0.0","v0.11.1","v0.11.0","v0.10.0","v0.9.0","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.7.1","v0.6.0","v0.5.1","v0.5.0","v0.4.0","v0.3.0","v0.2.1","v0.2.0","v0.1.3","v0.1.2","v0.1.1","v0.1.0","v0.0.23","v0.0.22","v0.0.21","v0.0.20","v0.0.19","v0.0.18","v0.0.17","v0.0.16","v0.0.15","v0.0.14","v0.0.13","v0.0.12","v0.0.11","v0.0.10","v0.0.9","v0.0.8","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.3","v0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73851.json","vanir_signatures_modified":"2026-08-19T12:09:58Z","vanir_signatures":[{"digest":{"line_hashes":["66609017551477010826143835577406265593","35496344713004664179944048284480170529","147500007851372202392601133532187874810","240753228186878202917022054237087631710","32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