Medium severity5.4NVD Advisory· Published Aug 28, 2026· Updated Aug 31, 2026
CVE-2026-70309
CVE-2026-70309
Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Affected products
1Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70309nvdVendor Advisory
News mentions
1- Microsoft Edge: Batch of 7 CVEs patched, including High-severity RCE flawVypr Intelligence · Aug 28, 2026