What is CVE-2026-8004?

CVE-2026-8004 is a medium-severity vulnerability in Apple Macos, classified under Protection Mechanism Failure. CVSS score: 4.3/10. Published 2026-05-06.

How severe is CVE-2026-8004?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Apple Macos

CVE-2026-8004

Insufficient policy enforcement in DevTools in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security seve…

EPSS: 0.000 (6.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Apple Macos
Google Chrome — versions 148.0.7778.96
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

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

Frequently asked questions

What is CVE-2026-8004?: CVE-2026-8004 is a medium-severity vulnerability in Apple Macos, classified under Protection Mechanism Failure. CVSS score: 4.3/10. Published 2026-05-06.
How severe is CVE-2026-8004?: Medium severity. CVSS v3 base score is 4.3 out of 10.