A critical remote code execution vulnerability located within an artificial intelligence assistant integration pipeline has been detailed, highlighting risks associated with automated web interaction parameters. The bug permits remote adversaries to execute arbitrary background commands by delivering indirect prompt injection strings via web browser sessions.
The vulnerability, tracked as CVE-2026-48561 and carrying a CVSS score of 9.6, impacts Microsoft Copilot deployments integrated across enterprise Edge environments. The flaw stems from insufficient sanitization of incoming web data streams processed by automated assistant subroutines. By hosting a malicious web page that forces the browser assistant to process embedded prompt parameters, an attacker can manipulate underlying script parameters, execute arbitrary code, and access local system resources.
Exploiting artificial intelligence integration layers removes traditional user validation boundaries from corporate workstations. Because assistant modules interact directly with operating system APIs and local session tokens, an indirect prompt injection attack lets adversaries steal authentication cookies, access local document caches, and pivot into corporate cloud environments.
– Apply current security updates provided by Microsoft for Edge browser and Copilot components across all corporate devices.
– Enforce rigid web filtering policies to prevent enterprise browsers from navigating to unverified hosting domains.
– Restrict AI assistant system permissions to limit automated access to local user file directories and system commands.
– Monitor endpoint security telemetry for unusual process creations originating from browser integration daemons.
Enterprise AI deployment security depends on establishing strict isolation controls around automated language tools to guarantee that web-delivered prompt injections cannot execute host system commands. #CodeDefence #Microsoft #Copilot #AISecurity #PromptInjection #RCE #AppSec
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