CVE-2026-59861
Kiota: Code Generation Literal Injection in Kiota Ruby Generator
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | microsoft |
| Product | kiota |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jul 16, 2026 |
| Last Updated | Jul 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
microsoft / kiota
< 1.32.0
References
github.com: https://github.com/microsoft/kiota/security/advisories/GHSA-xg2h-5xr2-29jw github.com: https://github.com/microsoft/kiota/pull/7746 github.com: https://github.com/microsoft/kiota/commit/fee1b648bb4394ba7ba72de9c0ce4f2a0bad0cb6 github.com: https://github.com/microsoft/kiota/releases/tag/v1.32.0