CVE-2026-70309: Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.

PriorityP429medium5.4CVSS 3.1

AVNACLPRNUIRSUCLILAN

EPSS

0.21%

10.9th percentile

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
microsoft	edge_chromium	< 150.0.4078.65	150.0.4078.65
microsoft	microsoft_edge	>= 1.0.0.0 < 150.0.4078.65	150.0.4078.65

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