What is CVE-2026-5874?

CVE-2026-5874 is a critical-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 9.6/10. Published 2026-04-08.

How severe is CVE-2026-5874?

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

Use After Free in Apple macOS

CVE-2026-5874

Use after free in PrivateAI in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Use-After-Free

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

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.

EPSS exploit prediction

EPSS: 0.003 (25.6th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Weakness classification (CWE)

CWE-416 — Use After Free

References

chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/485397279 (Permissions Required)

Frequently asked questions

What is CVE-2026-5874?: CVE-2026-5874 is a critical-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 9.6/10. Published 2026-04-08.
How severe is CVE-2026-5874?: Critical severity. CVSS v3 base score is 9.6 out of 10.