Aug 2026: Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-70309 Published on August 28, 2026

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

Vendor Advisory NVD

Weakness Type

Origin Validation Error

The software does not properly verify that the source of data or communication is valid.


Products Associated with CVE-2026-70309

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Microsoft Edge Chromium
 

Affected Versions

Microsoft Edge (Chromium-based):