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

Summary kiota plugin add / kiota plugin generate with -t APIPlugin emits an attacker-controlled statictemplate.file path from the AI-plugin extensions x-ai-adaptive-card, x-ai-capabilities verbatim, with no path validation, into the generated Microsoft 365 Copilot / Teams plugin manifest...

CVE-2026-59864 Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, kiota plugin add and kiota plugin generate with -t APIPlugin emitted attacker-controlled statictemplate.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin...

CVE-2026-59864 Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, kiota plugin add and kiota plugin generate with -t APIPlugin emitted attacker-controlled statictemplate.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin...