PT-2026-60480 · Microsoft · Kiota

CVE-2026-59861 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.0, Kiota's Ruby generator embedded OpenAPI default fields, property names, and other schema-derived strings through CodeMethodWriter.cs and SanitizeForQuotedLiteral() in Writers/StringExtensions.cs into Ruby double-quoted literals without escaping #, allowing attacker-controlled #{expr}, #$var, or #@var interpolation markers to inject arbitrary Ruby code into generated model classes. This issue is fixed in version 1.32.0.

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-59861

Affected Products

Kiota

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-59861 · Security Note
• https://github.com/microsoft/kiota/commit/fee1b648bb4394ba7ba72de9c0ce4f2a0bad0cb6 · Note
• https://github.com/microsoft/kiota/releases/tag/v1.32.0 · Note
• https://github.com/microsoft/kiota/pull/7746 · Note
• https://github.com/microsoft/kiota/security/advisories/GHSA-xg2h-5xr2-29jw · Note