What is CVE-2026-5902?

CVE-2026-5902 is a critical-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 9.8/10. Published 2026-04-08.

How severe is CVE-2026-5902?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Apple macOS

CVE-2026-5902

Race in Media in Google Chrome on Android prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to corrupt media stream metadata via a crafted HTML page. (Chromium security severity: Low)

Vulnerability class: Race Condition

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (23.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.6% 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-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/483109205 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2026-5902?: CVE-2026-5902 is a critical-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 9.8/10. Published 2026-04-08.
How severe is CVE-2026-5902?: Critical severity. CVSS v3 base score is 9.8 out of 10.