Critical Microsoft Copilot CoSnitch Vulnerability CVE-2026-24301 Explained

Discover how the critical microsoft copilot cosnitch vulnerability cve-2026-24301 allowed attackers to steal sensitive data with a single click using meta-hacking.

A severe security flaw tracked as the microsoft copilot cosnitch vulnerability cve-2026-24301 has exposed the hidden risks of connecting third-party applications to personal AI assistants. Discovered by researchers at Varonis Threat Labs, this vulnerability allowed attackers to silently siphon sensitive data from a victim's connected accounts (such as Gmail and Google Drive) with just a single click on a malicious link.

Microsoft officially patched the vulnerability in Copilot Personal on August 18, 2026. The vulnerability was not a traditional buffer overflow; it was a sophisticated chain of prompt injection and command injection leveraging an undocumented URL parameter (autorun=1).

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