CVE-2026-59865criticalCWE-829CWE-94

CVE-2026-59865: critical vulnerability in microsoft kiota

Kiota: Command injection via x-ms-kiota-info dependencyInstallCommand surfaced by `kiota info`

Published · Updated

Follow this CVE+ Monitor kiota+ Monitor Microsoft.OpenApi.Kiota

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.3epss 4.4%
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, `kiota info` read x-ms-kiota-info.languagesInformation.<language>.dependencyInstallCommand plus dependency name and version values from an OpenAPI description and presented the spec-supplied command as Kiota's recommended install command, allowing an attacker-controlled or compromised description to cause command injection when the suggested command was run manually or through the Kiota VS Code extension's kiota info --json dependency-install flow. This issue is fixed in version 1.29.1 and 1.32.5.
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
Affected products
microsoft · kiota
Related CVEs — microsoft kiota

In the same product, most dangerous first.

CVE-2026-59867HIGHKiota: Generation-time SSRF + remote/local file inclusion via unrestricted $refEPSS 2.4%CVE-2026-73851MEDIUMKiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)EPSS 2.3%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%