Out-of-bounds read in Google Chromium - CVE-2026-13033

Vulnerability identifier: #VU135254

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-13033

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition within the Blink>InterestGroups component in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger an out-of-bounds read error and execute arbitrary code on the 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 149.0.7827.196
Microsoft Edge - update to 149.0.4022.96
Google Chrome - update to 149.0.7827.196
Chrome OS - update to 144.0.7559.256
chromium - addressed in versions 149.0.7827.196-1.el9, 149.0.7827.196-1.el10_2, 149.0.7827.196-1.el10_3, 149.0.7827.196-1.fc43, 149.0.7827.196-1.fc44
chromium (Debian package) - update to 149.0.7827.196-1~deb13u1

• https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0482630350.html
• https://crbug.com/523677844

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