Intel

AIKIDO-2026-696230

Microsoft.OpenApi.Kiota is vulnerable to Path Traversal

Path TraversalCVE-2026-73851 Published Jul 9, 2026

67

Medium Risk

This Affects:

DOTNETMicrosoft.OpenApi.Kiota
1.15.0 - 1.33.0
Fixed in 1.34.0
Are you affected? Scan for Free

TL;DR

A path traversal vulnerability allowed attacker-controlled consumer identifiers (and related file reference/config keys) to escape the intended .kiota/documents namespace, enabling overwriting another consumer’s cached OpenAPI description. The fix adds strict validation of consumer identifiers/extensions, canonicalizes paths with GetFullPath, performs containment checks to prevent escaping the documents directory, and hardens file-reference parsing against percent-encoding/double-encoding, control chars (including NUL), and Unicode normalization bypasses.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

Microsoft.OpenApi.Kiota is vulnerable to Path Traversal in versions 1.15.0 - 1.33.0.

How to fix this

Upgrade the Microsoft.OpenApi.Kiota library to the patch version.

Are You Affected?

Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.

Free. No credit card required.

Aikido Platform