What is CVE-2026-5276?

CVE-2026-5276 is a medium-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 6.5/10. Published 2026-04-01.

How severe is CVE-2026-5276?

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

Vulnerability in Apple macOS

CVE-2026-5276

Insufficient policy enforcement in WebUSB in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)

EPSS: 0.002 (8.9th 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:H/I:N/A:N.

Affected products

Apple Macos
Google Chrome — versions 146.0.7680.178
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2026-5276?: CVE-2026-5276 is a medium-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 6.5/10. Published 2026-04-01.
How severe is CVE-2026-5276?: Medium severity. CVSS v3 base score is 6.5 out of 10.