What is CVE-2026-6296?

CVE-2026-6296 is a critical-severity vulnerability in Apple Macos, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-04-15.

How severe is CVE-2026-6296?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Buffer overflow in Apple Macos

CVE-2026-6296

Heap buffer overflow in ANGLE in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Vulnerability class: Buffer Overflow

EPSS: 0.000 (9.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Apple Macos
Google Chrome — versions 147.0.7727.101
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2026-6296?: CVE-2026-6296 is a critical-severity vulnerability in Apple Macos, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-04-15.
How severe is CVE-2026-6296?: Critical severity. CVSS v3 base score is 9.6 out of 10.