CVE-2026-59864

Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.5, `kiota plugin add` and `kiota plugin generate` (with `-t APIPlugin`) emitted attacker-controlled static_template.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin manifests without path validation, allowing ../, absolute, rooted, UNC, Windows drive, or URI paths in response_semantics.static_template.file to cause path traversal or out-of-package file inclusion when the generated plugin was deployed. This issue is fixed in version 1.32.5.

References

https://github.com/microsoft/kiota/security/advisories/GHSA-4jwf-m4wg-8p66

https://github.com/microsoft/kiota/releases/tag/v1.32.5

https://github.com/microsoft/kiota/pull/7892

https://github.com/microsoft/kiota/commit/9a185994a4e549b7bba3cc2beffb9736aa902e79

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4