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CVE-2026-59864

CRITICAL
9.3
CVSS 4.0
Description
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.5, `kiota plugin add` and `kiota plugin generate` (with `-t APIPlugin`) emitted attacker-controlled static_template.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin manifests without path validation, allowing ../, absolute, rooted, UNC, Windows drive, or URI paths in response_semantics.static_template.file to cause path traversal or out-of-package file inclusion when the generated plugin was deployed. This issue is fixed in version 1.32.5.

Metadata

CVE ID
CVE-2026-59864
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-07-07 15:41 UTC
Published
2026-07-16 14:45 UTC
Last updated
2026-07-17 03:56 UTC
Primary CWE
CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
Vendor / Product
microsoft / kiota
Sources
cve.org  ·  NVD

Severity & Metrics

9.3 CRITICAL CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
microsoft kiota — < 1.32.5
Weakness (CWE)
CWESourceDescription
CWE-22 cna CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-829 cna CWE-829: Inclusion of Functionality from Untrusted Control Sphere
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.3 CRITICAL 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References (4)
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