ZDI-26-329: (Pwn2Own) Microsoft Edge Origin Validation Error Security Bypass Vulnerability

This vulnerability allows remote attackers to access restricted functionality on affected installations of Microsoft Edge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 4.3. The following CVEs are assigned: CVE-2026-45492.