CVE-2026-59863

Kiota: Workspace-config poisoning: out-of-repo file write + generation-time SSRF

State
Published
Severity
7.0 High
Published
Jul 16, 2026
Updated
Aug 17, 2026
Reserved
Jul 7, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.07.0 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

ProductVersions
kiotamicrosoft
  • >= 1.30.0, < 1.31.1Affected
  • < 1.29.1Affected

References

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