Use-after-free in Google Chromium - CVE-2026-9990

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Main Vulnerability Database Vulnerabilities #VU132901

Use-after-free in Google Chromium - CVE-2026-9990

Published: May 29, 2026


Vulnerability identifier: #VU132901
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-9990
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the WebAppInstalls component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

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

How to mitigate CVE-2026-9990

Install update from vendor's website.

Google Chromium - update to 148.0.7778.215
Microsoft Edge - update to 148.0.3967.96
chromium - addressed in versions 148.0.7778.215-1.el9, 148.0.7778.215-1.el10_2, 148.0.7778.215-1.el10_3, 148.0.7778.215-1.fc43, 148.0.7778.215-1.fc44
chromium (Debian package) - addressed in versions 148.0.7778.215-1~deb12u1, 148.0.7778.215-1~deb13u1

External References

Related Security Bulletins