Privilege escalation in Apple macOS
CVE-2026-11308
Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to perform privilege escalation via a crafted Chrome Extension. (Chromium security severity: Low)
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.001 (0.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.8% 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
- Apple macOS
- Google Chrome — versions 149.0.7827.53
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html (Release Notes)
- issues.chromium.org/issues/505945112 (Permissions Required)
Frequently asked questions
- What is CVE-2026-11308?
- CVE-2026-11308 is a medium-severity vulnerability in Apple macOS, classified under Improper Privilege Management. CVSS score: 6.3/10. Published 2026-06-05.
- How severe is CVE-2026-11308?
- Medium severity. CVSS v3 base score is 6.3 out of 10.