Permissions, Privileges, and Access Controls in Google Chromium - CVE-2026-6313

Vulnerability identifier: #VU126294

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-6313

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient policy enforcement in CORS in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and compromise the affected system.

Google Chromium
Microsoft Edge
Google Chrome
Debian Linux
Fedora
Chrome OS
chromium
chromium (Debian package)

Install update from vendor's website.

Google Chromium - update to 147.0.7727.101
Microsoft Edge - addressed in versions 146.0.3856.130, 147.0.3912.72
Google Chrome - update to 147.0.7727.101
Chrome OS - update to 144.0.7559.255
chromium - addressed in versions 147.0.7727.101-1.el9, 147.0.7727.101-1.el10_1, 147.0.7727.101-1.el10_2, 147.0.7727.101-1.el10_3, 147.0.7727.101-1.fc42, 147.0.7727.101-1.fc43, 147.0.7727.101-1.fc44
chromium (Debian package) - addressed in versions 147.0.7727.101-1~deb12u1, 147.0.7727.101-1~deb13u1

• https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html
• https://crbug.com/498765210

• Multiple vulnerabilities in Google Chrome
• Fedora EPEL 10.1 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora EPEL 10.3 update for chromium
• Fedora 44 update for chromium
• Fedora 42 update for chromium
• Fedora EPEL 10.2 update for chromium
• Fedora 43 update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Debian update for chromium
• Multiple vulnerabilities in Google ChromeOS LTS