What is CVE-2026-3940?

CVE-2026-3940 is a medium-severity vulnerability in Apple Macos, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-03-11.

How severe is CVE-2026-3940?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Apple Macos

CVE-2026-3940

Insufficient policy enforcement in DevTools in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

EPSS: 0.002 (5.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Apple Macos
Google Chrome — versions 146.0.7680.71
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2026-3940?: CVE-2026-3940 is a medium-severity vulnerability in Apple Macos, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-03-11.
How severe is CVE-2026-3940?: Medium severity. CVSS v3 base score is 5.3 out of 10.