Main Vulnerability Database Vulnerabilities #VU145580

Observable discrepancy in Google Chromium - CVE-2026-78936

Published: August 26, 2026

Vulnerability identifier: #VU145580

CSH Severity: Low

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

CVE-ID: CVE-2026-78936

CWE-ID: CWE-203

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an observable discrepancy in CustomTabs when rendering content. A remote attacker can trick the victim into interacting with crafted web content to disclose sensitive information.

User interaction is required.

Affected software

Google Chromium
Google Chrome

How to mitigate CVE-2026-78936

Install security update from vendor's website.

Google Chromium - update to 152.0.7977.64
Google Chrome - addressed in versions 151.0.7922.175, 152.0.7977.64

External References

Related Security Bulletins