Main Vulnerability Database Vulnerabilities #VU148621

Incorrect authorization in Google Chromium - CVE-2026-87540

Published: September 9, 2026

Vulnerability identifier: #VU148621

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-87540

CWE-ID: CWE-863

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform unauthorized actions.

The vulnerability exists due to incorrect authorization in the Isolated component when processing crafted web content. A remote attacker can trick the victim into interacting with crafted web content to perform unauthorized actions.

User interaction is required.

Affected software

Google Chromium
Google Chrome

How to mitigate CVE-2026-87540

Install security update from vendor's website.

Google Chromium - update to 153.0.8010.36
Google Chrome - update to 153.0.8010.36

External References

Related Security Bulletins