CVE-2026-41106
Microsoft 365 CopilotVulnerabilityCVSS 9.3
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
No public exploitation has been reported so far. No distribution fix is listed yet; apply vendor mitigations and monitor.
Recommended action: Track your distribution's security tracker and apply the fix as soon as it ships.
Severity metrics
CVSS 3.1 : 9.3 CRITICAL
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Vector: AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
No affected package in the tracked watchlist yet (Debian, Ubuntu, Arch, SUSE, Red Hat...). Triage may still be pending.