Cyber Resilience

CVE-2026-6302

High

Published: 15 April 2026

Published
15 April 2026
Modified
26 May 2026
KEV Added
—
Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0033 25.1th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-6302 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 25.1th 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).

Deeper analysis

CVE-2026-6302 is a use-after-free vulnerability (CWE-416) in the Video 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 flaw by luring a user to visit a crafted HTML page, which triggers the use-after-free condition in the Video component. Successful exploitation enables 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 and no special privileges.

Mitigation is available via the stable channel update to Google Chrome 147.0.7727.101 or later, as announced in the Chrome Releases blog post at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html and detailed in the Chromium issue tracker at https://issues.chromium.org/issues/495477995. Security practitioners should prioritize updating affected browsers.

EU & UK References

Vulnerability details

Use after free in Video 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)

CWE(s)
CWE-416

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Why these techniques?

Use-after-free in Chrome Video component triggered by crafted HTML page enables drive-by compromise (T1189) and client application exploitation for arbitrary code execution (T1203).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-7357Same product: Apple Macos
CVE-2026-7342Same product: Apple Macos
CVE-2026-4680Same product: Apple Macos
CVE-2026-7355Same product: Apple Macos
CVE-2026-5284Same product: Apple Macos
CVE-2026-9992Same product: Apple Macos
CVE-2026-9118Same product: Apple Macos
CVE-2026-7336Same product: Apple Macos
CVE-2026-7974Same product: Apple Macos
CVE-2026-7352Same product: Apple Macos

Affected Assets

google
chrome
≤ 147.0.7727.101

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the use-after-free vulnerability in Chrome's Video component by requiring timely application of the vendor update to version 147.0.7727.101 or later.

RA-5 Vulnerability Monitoring and Scanning partial match
preventdetect

Enables scanning and monitoring to identify systems running vulnerable Chrome versions prior to 147.0.7727.101 affected by this use-after-free flaw.

SI-5 Security Alerts, Advisories, and Directives partial match
prevent

Ensures receipt and dissemination of security advisories on CVE-2026-6302 from sources like Chrome Releases blog, prompting timely flaw remediation.

References