CVE-2026-59863
Published:July 16, 2026
Updated:August 04, 2026
Kiota is an OpenAPI based HTTP Client code generator. Prior to 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 1.32.5.
Affected Packages
Microsoft.OpenApi.Kiota (DOT_NET):
Affected version(s) >=0.1.0.0 <1.32.5Fix Suggestion:
Update to version 1.32.5Microsoft.OpenApi.Kiota.Builder (DOT_NET):
Affected version(s) >=0.2.0.0 <1.32.5Fix Suggestion:
Update to version 1.32.5microsoft.openapi.kiota (NUGET):
Affected version(s) >=0.1.0-preview <1.32.5Fix Suggestion:
Update to version 1.32.5microsoft.openapi.kiota (NUGET):
Affected version(s) >=0.1.0-preview <1.32.5Fix Suggestion:
Update to version 1.32.5microsoft.openapi.kiota.builder (NUGET):
Affected version(s) >=0.2.0-preview <1.32.5Fix Suggestion:
Update to version 1.32.5microsoft.openapi.kiota.builder (NUGET):
Affected version(s) >=0.2.0-preview <1.32.5Fix Suggestion:
Update to version 1.32.5Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
EPSS
Base Score:
1.12