CVE-2026-66317 — Microsoft Edge (Chromium-based) Tampering Vulnerability

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

Published: 2026-08-03 · CVSS: 5.4 · CVSS 3.1

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

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7