CVE-2026-6316
Published: 15 April 2026
Summary
CVE-2026-6316 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 Exploitation for Client Execution (T1203); ranked at the 35.3th 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 RA-5 (Vulnerability Monitoring and Scanning).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mandates timely identification, reporting, and correction of software flaws like the use-after-free vulnerability in Chrome Forms via patch deployment to version 147.0.7727.101.
Implements memory safeguards such as ASLR, DEP, and sandboxing enhancements that hinder arbitrary code execution from use-after-free exploits in Chrome.
Requires vulnerability scanning to identify deployed instances of vulnerable Google Chrome versions affected by CVE-2026-6316.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a use-after-free in Google Chrome's Forms component exploited via a crafted HTML page for arbitrary code execution in the browser sandbox, directly enabling Exploitation for Client Execution (T1203).
NVD Description
Use after free in Forms in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Deeper analysisAI
CVE-2026-6316 is a use-after-free vulnerability (CWE-416) in the Forms component of Google Chrome prior to version 147.0.7727.101. Published on 2026-04-15, it 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) and is classified as High severity by Chromium security.
A remote attacker can exploit this vulnerability via a crafted HTML page, achieving arbitrary code execution inside the browser's sandbox. Exploitation requires user interaction, such as loading the malicious page, but needs no privileges and has low complexity over the network.
Mitigation is available in Google Chrome version 147.0.7727.101 and later, as announced in the stable channel update for desktop on the Chrome Releases blog (https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html) and detailed in the Chromium issue tracker (https://issues.chromium.org/issues/499384399). Security practitioners should advise users to update promptly.
Details
- CWE(s)