CVE-2026-12456

MediumCVSS 4.2/10Last modified Jun 17, 2026

Description

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.155 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension. (Chromium security severity: High)

Metrics

CVSS 3.1 4.2/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published
Jun 17, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-12456: Medium severity, CVSS 4.2 | Vulnix