PT-2026-60479 · Microsoft · Kiota

CVE-2026-59860 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-59860

Affected Products

Kiota

References · 5

• 🔥 https://github.com/microsoft/kiota/security/advisories/GHSA-3hrf-2gc2-mx32 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-59860 · Security Note
• https://github.com/microsoft/kiota/releases/tag/v1.32.3 · Note
• https://github.com/microsoft/kiota/pull/7831 · Note
• https://github.com/microsoft/kiota/commit/ebb632db90aa8e3c20949337d9faa2720d64ca44 · Note