CVE-2026-59862 PUBLISHED

Kiota: Code Generation Literal Injection in the Python Generator

Assigner: GitHub_M
Reserved: 07.07.2026 Published: 16.07.2026 Updated: 16.07.2026

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.0, Kiota's Python generator let attacker-controlled enum value descriptions from x-ms-enum.values[].description flow through KiotaBuilder.SetEnumOptions into Documentation.DescriptionTemplate and PythonConventionService.RemoveInvalidDescriptionCharacters without newline sanitization, allowing generated inline comments to split and execute attacker-controlled Python code at module scope when generated modules were imported. This issue is fixed in version 1.32.0.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 7.5

Product Status

Vendor microsoft
Product kiota
Versions
  • Version < 1.32.0 is affected

References

Problem Types

  • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE