CVE-2026-59861 – Kiota: Code Generation Literal Injection in Kiota Ruby Generator

CVE ID :CVE-2026-59861

Published : July 16, 2026, 3:16 p.m. | 18 minutes ago

Description :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.

Severity: 7.5 | HIGH

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