What is CVE-2026-5881?

CVE-2026-5881 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-04-08.

How severe is CVE-2026-5881?

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

Vulnerability in Apple macOS

CVE-2026-5881

Policy bypass in LocalNetworkAccess in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)

EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.

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:N/I:H/A:N.

Affected products

Apple Macos
Google Chrome — versions 147.0.7727.55
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-2026-5881?: CVE-2026-5881 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-04-08.
How severe is CVE-2026-5881?: Medium severity. CVSS v3 base score is 6.5 out of 10.