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Large Language ModelsAI Coding AssistantsVentureBeat AIPublished: Apr 16, 2026, 07:00 JST

Microsoft's patched Copilot Studio vulnerability signals a new security challenge for enterprise AI agents that patches alone cannot fully eliminate.

Microsoft assigned CVE-2026-21520 (CVSS 7.5) to an indirect prompt injection flaw in Copilot Studio discovered by Capsule Security, with the patch deployed January 15, 2026.

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