Use-after-free in Google Chromium - CVE-2026-9961

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Main Vulnerability Database Vulnerabilities #VU132872

Use-after-free in Google Chromium - CVE-2026-9961

Published: May 29, 2026


Vulnerability identifier: #VU132872
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-2026-9961
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 SurfaceCapture 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
Chrome OS
chromium
chromium (Debian package)

How to mitigate CVE-2026-9961

Install update from vendor's website.

Google Chromium - update to 148.0.7778.215
Microsoft Edge - update to 148.0.3967.96
Chrome OS - update to 144.0.7559.256
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