What is CVE-2026-9124?

CVE-2026-9124 is a medium-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-05-20.

How severe is CVE-2026-9124?

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

Improper input validation in Apple Macos

CVE-2026-9124

Insufficient validation of untrusted input in Input in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severi…

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

EPSS: 0.001 (18.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-9124?: CVE-2026-9124 is a medium-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-05-20.
How severe is CVE-2026-9124?: Medium severity. CVSS v3 base score is 5.3 out of 10.