VYPR
Critical severityNVD Advisory· Published Jul 16, 2026· Updated Jul 17, 2026

Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions

CVE-2026-59864

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.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
Microsoft.OpenApi.KiotaNuGet
< 1.32.51.32.5
Microsoft.OpenApi.Kiota.BuilderNuGet
< 1.32.51.32.5

Affected products

1

Patches

Vulnerability mechanics

References

6

News mentions

0

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