CVE-2026-59863

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.

Score

CVSS 4.0 7.0 High

Status

Deferred - security-advisories@github.com

Published

2026-07-16

Last modified

2026-10-24

Weaknesses

CWE-22

Affected products

• Kiota (Microsoft)

References

• https://github.com/microsoft/kiota/security/advisories/GHSA-4rj6-vrwv-wr8m
• https://github.com/microsoft/kiota/pull/7885
• https://github.com/microsoft/kiota/commit/4049327872db7846ace35c9003774d3e3878e4e9
• https://github.com/microsoft/kiota/releases/tag/v1.32.5