What is CVE-2026-11269?

CVE-2026-11269 is a high-severity vulnerability in Apple macOS, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.1/10. Published 2026-06-05.

How severe is CVE-2026-11269?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Apple macOS

CVE-2026-11269

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker in a privileged network position to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: Low)

Published 2026-06-05 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html (Vendor Advisory)
issues.chromium.org/issues/500551122 (Permissions Required)

Frequently asked questions

What is CVE-2026-11269?: CVE-2026-11269 is a high-severity vulnerability in Apple macOS, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.1/10. Published 2026-06-05.
How severe is CVE-2026-11269?: High severity. CVSS v3 base score is 7.1 out of 10.