Vulnerability Description
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota honored a poisoned .kiota/workspace.json workspace configuration without validating per-client or per-plugin outputPath values during kiota client generate and kiota plugin generate, allowing a malicious repository or pull request to use absolute paths, rooted POSIX / paths, UNC \\ or // paths, Windows drive X:\ paths, or .. traversal segments to write generated client files outside the workspace root on a developer or CI host. This issue is fixed in version 1.29.1 and 1.32.5.
Related Weaknesses (CWE)
References
- https://github.com/microsoft/kiota/commit/4049327872db7846ace35c9003774d3e3878e4
- https://github.com/microsoft/kiota/pull/7885
- https://github.com/microsoft/kiota/releases/tag/v1.32.5
- https://github.com/microsoft/kiota/security/advisories/GHSA-4rj6-vrwv-wr8m
FAQ
What is CVE-2026-59863?
CVE-2026-59863 is a documented vulnerability. Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota honored a poisoned .kiota/workspace.json workspace configuration without validating per-client or per-plugin out...
How severe is CVE-2026-59863?
CVSS scoring is not yet available for CVE-2026-59863. Check NVD for updates.
Is there a patch for CVE-2026-59863?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.