Heap-based buffer overflow in Google Chromium - CVE-2026-19156

Vulnerability identifier: #VU141213

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-2026-19156

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in Base. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target 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 151.0.7922.108
Microsoft Edge - update to 151.0.4129.78
Google Chrome - update to 151.0.7922.108
Chrome OS - update to 144.0.7559.259
chromium - addressed in versions 151.0.7922.108-1.el9, 151.0.7922.108-1.el10_2, 151.0.7922.108-1.el10_3, 151.0.7922.108-1.fc43, 151.0.7922.108-1.fc44
chromium (Debian package) - update to 151.0.7922.108-1~deb13u1

• https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html
• https://crbug.com/533331920

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