CVE-2026-59861

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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.

• github.comhttps://github.com/microsoft/kiota/commit/fee1b648bb4394ba7ba72de9c0ce4f2a0bad0cb6
• github.comhttps://github.com/microsoft/kiota/pull/7746
• github.comhttps://github.com/microsoft/kiota/releases/tag/v1.32.0
• github.comhttps://github.com/microsoft/kiota/security/advisories/GHSA-xg2h-5xr2-29jw