AIKIDO-2026-161193
@microsoft/kiota is vulnerable to Path Traversal
93
Critical Risk
This Affects:
@microsoft/kiotaTL;DR
Kiota writes the static_template.file path from the x-ai-adaptive-card and x-ai-capabilities OpenAPI extensions verbatim into generated Microsoft 365 Copilot and Teams plugin manifests without validation. An attacker-controlled OpenAPI description can embed .. traversal segments or an absolute path in this field. When the generated plugin is later deployed, the AI host resolves the reference to a file outside the plugin package, causing path traversal and out-of-package file inclusion. The fix validates static_template.file as a relative path confined to the plugin output and rejects absolute, rooted, and traversal values.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you generate Microsoft 365 Copilot or Teams API plugins from an untrusted or attacker-influenced OpenAPI description.
Background info
@microsoft/kiota is vulnerable to Path Traversal in versions 0.0.1 - 1.32.4.
How to fix this
Upgrade the @microsoft/kiota library to the patch version.
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SOC 2Compliant
ISO 27001Compliant