Out-of-bounds write in Google Chromium - CVE-2026-7950

Vulnerability identifier: #VU130343

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-7950

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to a boundary error when processing untrusted input in GFX. A remote attacker can trick the victim into visiting a specially crafted website, trigger an out-of-bounds write and read data from memory or crash the browser. 

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

Install update from vendor's repository.

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/496259890

• 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