What is CVE-2026-14066?

CVE-2026-14066 is a medium-severity vulnerability in Apple Iphone OS, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-06-30.

How severe is CVE-2026-14066?

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

Improper input validation in Apple Iphone OS

CVE-2026-14066

Insufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (14.5th 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:N/I:L/A:N.

Affected products

Apple Iphone_os
Google Chrome — versions 150.0.7871.47

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-14066?: CVE-2026-14066 is a medium-severity vulnerability in Apple Iphone OS, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-06-30.
How severe is CVE-2026-14066?: Medium severity. CVSS v3 base score is 4.3 out of 10.