CVE-2026-66318

Published Aug 4, 2026

Last updated 20 days ago

Overview

Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Source
secure@microsoft.com
NVD status
Analyzed
Products
edge_chromium

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.1
Impact score
5.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Severity
HIGH

Weaknesses

secure@microsoft.com
CWE-346

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.