Thursday, 29 October 2026
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CVE-2026-41106: Open redirect in M365 Copilot enables privilege elevation

A URL redirection to untrusted site ('open redirect') vulnerability in Microsoft M365 Copilot allows an unauthorized attacker to elevate privileges over a network. The issue is tracked as CVE-2026-41106 and documented in Microsoft's security update guide.

Disclosed 2 July 2026 · Record updated 1 October 2026

Impact

An unauthorized attacker could elevate privileges over a network via an open redirect in M365 Copilot.

Our coverage

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Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-41106