CVE-2026-6318
Published: 15 April 2026
Description
Adversaries may exploit software vulnerabilities in client applications to execute code.
Security Summary
CVE-2026-6318 is a use-after-free vulnerability (CWE-416) in the Codecs 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 rated Medium severity by Chromium security.
A remote attacker can exploit this vulnerability by crafting an HTML page that, when loaded by a user, triggers the use-after-free error in the Codecs component. This allows the attacker to execute arbitrary code within the browser's sandbox, potentially compromising confidentiality, integrity, and availability with high impact, though it requires user interaction such as visiting the malicious page.
Mitigation is available via the Google Chrome stable channel update for desktop, which includes the fix in version 147.0.7727.101; details are provided at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html. Additional technical information is documented in the Chromium issue tracker at https://issues.chromium.org/issues/495996858. Security practitioners should prioritize updating affected Chrome installations.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise Techniques
Why these techniques?
Use-after-free in Chrome Codecs enables arbitrary code execution via crafted HTML page loaded in browser, directly facilitating drive-by compromise (T1189) and client-side exploitation (T1203).