CVE-2026-59865: Microsoft Kiota

Critical severity, CVSS 9.3. EPSS: 4.4% chance of exploitation in the next 30 days.

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.

Affected products

• Microsoft Kiota: from 1.30.0, before 1.31.1 (fixed in 1.31.1); before 1.29.1 (fixed in 1.29.1)

Published 2026-07-16. Last modified 2026-08-17.