What is CVE-2026-5915?

CVE-2026-5915 is a high-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2026-04-08.

How severe is CVE-2026-5915?

High severity. CVSS v3 base score is 8.1 out of 10.

Improper input validation in Apple Macos

CVE-2026-5915

Insufficient validation of untrusted input in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Low)

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

EPSS: 0.001 (28.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Apple Macos
Google Chrome — versions 147.0.7727.55
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-5915?: CVE-2026-5915 is a high-severity vulnerability in Apple Macos, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2026-04-08.
How severe is CVE-2026-5915?: High severity. CVSS v3 base score is 8.1 out of 10.