What is CVE-2026-5913?

CVE-2026-5913 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-04-08.

How severe is CVE-2026-5913?

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

Out-of-bounds Read in Apple macOS

CVE-2026-5913

Out of bounds read in Blink in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Low)

Vulnerability class: Buffer Overflow

Published 2026-04-08 · last modified 2026-07-24.

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:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (23.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/487195286 (Permissions Required)

Frequently asked questions

What is CVE-2026-5913?: CVE-2026-5913 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-04-08.
How severe is CVE-2026-5913?: High severity. CVSS v3 base score is 8.1 out of 10.