Improperly implemented security check for standard in Google Chromium - CVE-2026-5291

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Main Vulnerability Database Vulnerabilities #VU124761

Improperly implemented security check for standard in Google Chromium - CVE-2026-5291

Published: April 1, 2026


Vulnerability identifier: #VU124761
CSH Severity: High
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-5291
CWE-ID: CWE-358
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in WebGL in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.


Affected software

Google Chromium
Microsoft Edge
Google Chrome
Prisma Access Browser
Debian Linux
Fedora
Chrome OS
cef
chromium
chromium (Debian package)

How to mitigate CVE-2026-5291

Install update from vendor's website.

Google Chromium - update to 146.0.7680.177
Microsoft Edge - update to 146.0.3856.97
Google Chrome - update to 146.0.7680.177
Chrome OS - update to 138.0.7204.310
cef - addressed in versions 146.0.11^chromium146.0.7680.177-2.fc42, 146.0.11^chromium146.0.7680.177-2.fc43, 146.0.11^chromium146.0.7680.177-2.fc44
chromium - addressed in versions 146.0.7680.177-1.el9, 146.0.7680.177-1.el10_1, 146.0.7680.177-1.el10_2, 146.0.7680.177-1.el10_3, 146.0.7680.177-1.fc42, 146.0.7680.177-1.fc43, 146.0.7680.177-1.fc44, 147.0.7727.55-1.fc42, 147.0.7727.101-1.fc42
chromium (Debian package) - addressed in versions 146.0.7680.177-1~deb12u1, 146.0.7680.177-1~deb13u1
Prisma Access Browser - update to 146.3.8.76

External References

Related Security Bulletins