What is CVE-2026-87443?

CVE-2026-87443 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-09.

How severe is CVE-2026-87443?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Google Chrome

CVE-2026-87443

Missing authorization in Actor in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-87443?: CVE-2026-87443 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-09.
How severe is CVE-2026-87443?: Medium severity. CVSS v3 base score is 6.5 out of 10.