CVE-2026-7344
Published: 28 April 2026
Summary
CVE-2026-7344 is a high-severity Use After Free (CWE-416) vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Drive-by Compromise (T1189); ranked at the 15.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and SC-39 (Process Isolation).
Deeper analysis
CVE-2026-7344 is a use-after-free vulnerability (CWE-416) in the Accessibility component of Google Chrome on Windows versions prior to 147.0.7727.138. The flaw affects the renderer process and carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), with Chromium security rating it as Critical.
A remote attacker who has already compromised the renderer process can exploit this vulnerability through a crafted HTML page to potentially escape the Chrome sandbox. The attack vector requires user interaction, such as visiting a malicious site, but needs no special privileges and has low attack complexity due to its network accessibility.
Mitigation is available via the stable channel update to Google Chrome version 147.0.7727.138 or later, as announced in the Chrome Releases blog at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_28.html and detailed in the Chromium issue tracker at https://issues.chromium.org/issues/503419515. Security practitioners should prioritize updating affected systems to patch this sandbox escape risk.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-26170
Vulnerability details
Use after free in Accessibility in Google Chrome on Windows prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The CVE describes a renderer sandbox escape via crafted HTML on a malicious site requiring user interaction, directly enabling drive-by compromise (T1189) and exploitation for client execution (T1203) to achieve code execution outside the sandbox.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates the use-after-free vulnerability by requiring timely patching of Google Chrome to version 147.0.7727.138 or later to prevent sandbox escape.
Implements memory protection mechanisms that counteract use-after-free exploits by restricting unauthorized memory access in the compromised renderer process.
Enforces process isolation for the renderer sandbox to confine the impact of compromises and limit potential escapes via crafted HTML pages.