Improper access control in Google Chromium - CVE-2024-5840

Vulnerability identifier: #VU91775

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-5840

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improper access restrictions in CORS. A remote attacker can create a specially crafted web page, trick the victim into visiting it, bypass implemented security restrictions and gain unauthorized access to sensitive information.

Google Chromium
Microsoft Edge
Google Chrome
Gentoo Linux
Debian Linux
Fedora
dev-qt/qtwebengine
chromium
chromium (Debian package)

Install update from vendor's website.

Google Chromium - update to 126.0.6478.54
Microsoft Edge - update to 126.0.2592.56
Google Chrome - update to 126.0.6478.54
dev-qt/qtwebengine - update to 103.0.5060.53
chromium - addressed in versions 126.0.6478.55-1.el7, 126.0.6478.55-1.el8, 126.0.6478.55-1.el9, 126.0.6478.55-1.fc39, 126.0.6478.55-1.fc40
chromium (Debian package) - update to 126.0.6478.56-1~deb12u1

• https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
• https://crbug.com/41492103

• Multiple vulnerabilities in Google Chrome
• Fedora EPEL 7 update for chromium
• Fedora EPEL 8 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora 40 update for chromium
• Fedora 39 update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Debian update for chromium
• Gentoo update for QtWebEngine