CVE-2026-59860

Published: Jul 16, 2026Modified: Jul 17, 2026Deferred

8.7

Vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: security-advisories@github.com (Secondary)

Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.3, Kiota is affected by a code-generation injection vulnerability in the C# XML documentation-comment sink (the description, externalDocs label, and externalDocs link fields emitted as /// … comments). When text from an OpenAPI description is written into single-line XML doc comments without stripping newline and Unicode line-terminator characters, an attacker can break out of the /// comment line and inject additional code into generated C# clients. This issue is fixed in version 1.32.3.

Related CWEs

CWE-94

Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

References (5)

https://github.com/microsoft/kiota/commit/ebb632db90aa8e3c20949337d9faa2720d64ca44

Source: security-advisories@github.com

https://github.com/microsoft/kiota/pull/7831

Source: security-advisories@github.com

https://github.com/microsoft/kiota/releases/tag/v1.32.3

Source: security-advisories@github.com

https://github.com/microsoft/kiota/security/advisories/GHSA-3hrf-2gc2-mx32

Source: security-advisories@github.com

https://github.com/microsoft/kiota/security/advisories/GHSA-3hrf-2gc2-mx32

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.