CVE-2026-12437

HighCVSS 8.3/10Last modified Jun 18, 2026

Description

Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:H/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
Jun 17, 2026
Last modified
Jun 18, 2026
NVD status
Analyzed

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CVE-2026-12437: High severity, CVSS 8.3 | Vulnix