What is CVE-2026-17654?

CVE-2026-17654 is a high-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.8/10. Published 2026-07-30.

How severe is CVE-2026-17654?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Apple macOS

CVE-2026-17654

Race in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Critical)

Vulnerability class: Race Condition

EPSS: 0.002 (9.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Apple Macos
Google Chrome — versions 151.0.7922.72

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

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

Frequently asked questions

What is CVE-2026-17654?: CVE-2026-17654 is a high-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.8/10. Published 2026-07-30.
How severe is CVE-2026-17654?: High severity. CVSS v3 base score is 7.8 out of 10.