CVE-2026-78939

CriticalCVSS 9.6/10Last modified Aug 27, 2026

Description

Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Metrics

CVSS 3.1 9.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Aug 25, 2026
Last modified
Aug 27, 2026
NVD status
Analyzed

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CVE-2026-78939: Critical severity, CVSS 9.6 | Vulnix