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9.3 Critical

CVE-2026-59866 Kiota is an OpenAPI based HTTP Client code generator

Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota emitted x-ms-kiota-info clientClassName and clientNamespaceName values without identifier or path sanitization as both generated client class or namespace names and generated output path components when `kiota generate` ran without -c/--class-name, allowing an attacker-controlled or compromised OpenAPI description to write generated source outside the -o output directory and inject arbitrary text into generated class or namespace declarations. This issue is fixed in version 1.29.1 and 1.32.5 by GenerationConfiguration.SanitizeClientClassName and SanitizeClientNamespaceName.

Affected products and versions

Product Affected versions Fixed in
kiota 1.30 1.30.0 → < 1.31.1 1.31.1
kiota 1.29 earliest → < 1.29.1 1.29.1

Other CVEs of kiota

The 13 CVEs of kiota →
CVE-2026-105796 Kiota is an OpenAPI based HTTP Client code generator 8.8 High CVE-2026-105795 Kiota is an OpenAPI based HTTP Client code generator 3.1 Low CVE-2026-73851 Kiota is an OpenAPI based HTTP Client code generator 6.1 Medium CVE-2026-59867 Kiota is an OpenAPI based HTTP Client code generator 7.1 High
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