CVE-2026-59859

high Microsoft
CVSS v3 Base Score
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Published: July 16, 2026 (52 days ago)
Last Modified: July 17, 2026
Vendor: Microsoft
Source: MITRE

Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 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 1.32.4.

CWE

CWE-94

Affected Products

microsoft kiota

References

🔗 github.com 🔗 github.com 🔗 github.com 🔗 github.com