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8.7 High

CVE-2026-59859 Kiota is an OpenAPI based HTTP Client code generator

Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.4, Kiota's PHP generator embedded OpenAPI description, default fields, property names, and other schema-derived strings into PHP double-quoted literals through SanitizeDoubleQuote() in Writers/StringExtensions.cs without escaping $, allowing attacker-controlled ${...}, $var, or {$obj->prop} interpolation constructs to inject arbitrary PHP code into generated model and request-builder classes. This issue is fixed in version 1.29.1 and 1.32.4.

Affected products and versions

Product Affected versions Fixed in
kiota 1.30 1.30.0 → < 1.31.1 1.31.1
kiota 1.29 earliest → < 1.29.1 1.29.1

References

Timeline

  1. Published
  2. Last modified

Other CVEs of kiota

The 13 CVEs of kiota →
CVE-2026-105796 Kiota is an OpenAPI based HTTP Client code generator 8.8 High CVE-2026-105795 Kiota is an OpenAPI based HTTP Client code generator 3.1 Low CVE-2026-73851 Kiota is an OpenAPI based HTTP Client code generator 6.1 Medium CVE-2026-59867 Kiota is an OpenAPI based HTTP Client code generator 7.1 High
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