Description
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 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 1.29.1 and 1.32.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| microsoft | kiota | >= 1.30.0, < 1.31.1, < 1.29.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Microsoft.OpenAPI.Kiota | >= 1.30.0, < 1.32.0 | 1.32.0 | GHSA-xg2h-5xr2-29jw |
| NuGet | Microsoft.OpenApi.Kiota | < 1.29.1 | 1.29.1 | GHSA-xg2h-5xr2-29jw |
| NuGet | Microsoft.OpenAPI.Kiota.Builder | >= 1.30.0, < 1.32.0 | 1.32.0 | GHSA-xg2h-5xr2-29jw |
| NuGet | Microsoft.OpenApi.Kiota.Builder | < 1.29.1 | 1.29.1 | GHSA-xg2h-5xr2-29jw |