What is CVE-2026-12463?

CVE-2026-12463 is a medium-severity vulnerability in Google Chrome, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-06-17.

How severe is CVE-2026-12463?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Google Chrome

CVE-2026-12463

Inappropriate implementation in Views in Google Chrome on Linux prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium securi…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Google Chrome — versions 149.0.7827.155

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-12463?: CVE-2026-12463 is a medium-severity vulnerability in Google Chrome, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-06-17.
How severe is CVE-2026-12463?: Medium severity. CVSS v3 base score is 4.7 out of 10.