Input validation error in Google Chromium - CVE-2026-8003

Vulnerability identifier: #VU130396

CSH Severity: Low

CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-8003

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to crash the browser.

The vulnerability exists due to a improper input validation in TabGroups in Google Chrome. A remote attacker can trick the victim to perform certain actions in browser and crash it.

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

Install update from vendor's website.

Google Chromium - update to 148.0.7778.96
Microsoft Edge - update to 148.0.3967.54
Google Chrome - update to 148.0.7778.96
chromium - addressed in versions 148.0.7778.96-1.el9, 148.0.7778.96-1.el10_1, 148.0.7778.96-1.el10_2, 148.0.7778.96-1.el10_3, 148.0.7778.96-1.fc42, 148.0.7778.96-1.fc43, 148.0.7778.96-1.fc44
chromium (Debian package) - addressed in versions 148.0.7778.96-1~deb12u1, 148.0.7778.96-1~deb13u1

• https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
• https://crbug.com/495985532

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