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CVE-2026-5866 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: April 9, 2026

Google Chrome - Use After Free

Published: April 8, 2026Updated: April 9, 2026Remote Exploitable

Overview

Google Chrome < 147.0.7727.55 contains a use after free vulnerability in Media, letting remote attackers execute arbitrary code inside a sandbox via crafted HTML pages.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Remote attackers can execute arbitrary code inside a sandbox, potentially compromising browser security.

Mitigation

Update to version 147.0.7727.55 or later.

References

https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/492218537

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-5866
Severity: High
CVSS Score: 8.8
Type: use_after_free
Status: new

CWE

CWE-416

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H