CVE-2026-73851

Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)

Published Aug 17, 2026 CVSS 4.0 · 6.1 Medium EPSS 2.3% KEV · Not listed
Description
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.34.0, an attacker who controls or tampers with the OpenAPI description consumed by Kiota can supply a file reference that resolves outside the manifest package (e.g. ../../../../etc/passwd, an absolute path, or a file:// / http(s):// URI). When the generated manifest is deployed and consumed by an AI host, this can lead to inclusion or disclosure of files outside the intended package boundary. This vulnerability is fixed in 1.29.1 and 1.34.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-p5rm-jg5c-8c77 Microsoft Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft kiota
Vendors & Products Microsoft
Microsoft kiota
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.34.0, an attacker who controls or tampers with the OpenAPI description consumed by Kiota can supply a file reference that resolves outside the manifest package (e.g. ../../../../etc/passwd, an absolute path, or a file:// / http(s):// URI). When the generated manifest is deployed and consumed by an AI host, this can lead to inclusion or disclosure of files outside the intended package boundary. This vulnerability is fixed in 1.29.1 and 1.34.0.
Title Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)
Weaknesses CWE-22
CWE-829
References
Metrics cvssV4_0

{'score': 6.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 17, 2026, 3:26 PM
Reserved
Aug 13, 2026, 5:44 PM
Status
Deferred
Published
Aug 17, 2026, 3:16 PM
Modified
Oct 24, 2026, 3:10 PM