CVE-2026-73851: fallo de gravedad media en microsoft kiota
Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.1epss 2.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Productos afectados
microsoft · kiotaCVEs relacionadas — microsoft kiota
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-59865CRITICALKiota: Command injection via x-ms-kiota-info dependencyInstallCommand surfaced by `kiota info`EPSS 4.4%CVE-2026-59867HIGHKiota: Generation-time SSRF + remote/local file inclusion via unrestricted $refEPSS 2.4%CVE-2026-59861HIGHKiota: Code Generation Literal Injection in Kiota Ruby GeneratorEPSS 2.0%CVE-2026-59866CRITICALKiota: Arbitrary file write + code-injection via x-ms-kiota-info clientClassName and clientNamespaceNameEPSS 1.4%CVE-2026-59859HIGHKiota: Code Generation Literal Injection in the PHP GeneratorEPSS 1.4%CVE-2026-59860HIGHKiota: XML Doc-Comment Newline Breakout Code InjectionEPSS 1.4%
Referencias
https://github.com/microsoft/kiota/commit/430008e9d700b3fe80f206c672415cfbd8e830e7https://github.com/microsoft/kiota/commit/de3d18d9fe31ced4ac749728d3a2f94811f59268https://github.com/microsoft/kiota/issues/7912https://github.com/microsoft/kiota/pull/7910https://github.com/microsoft/kiota/pull/7913https://github.com/microsoft/kiota/releases/tag/v1.29.1https://github.com/microsoft/kiota/releases/tag/v1.34.0https://github.com/microsoft/kiota/security/advisories/GHSA-p5rm-jg5c-8c77