What is CVE-2026-5899?

CVE-2026-5899 is a medium-severity vulnerability in Apple macOS, classified under Origin Validation Error. CVSS score: 6.1/10. Published 2026-04-08.

How severe is CVE-2026-5899?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Apple macOS

CVE-2026-5899

Insufficient policy enforcement in History Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who convinced a user to engage in specific UI gestures to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: Low)

EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

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

Frequently asked questions

What is CVE-2026-5899?: CVE-2026-5899 is a medium-severity vulnerability in Apple macOS, classified under Origin Validation Error. CVSS score: 6.1/10. Published 2026-04-08.
How severe is CVE-2026-5899?: Medium severity. CVSS v3 base score is 6.1 out of 10.