CVE-2026-106378

chromium-browser: Privilege elevation in Sandbox

Published Oct 6, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Description
Privilege elevation in Sandbox in Google Chrome on on Mac prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4833-1 chromium security update
Debian DSA Debian DSA DSA-6553-1 chromium security update
History
Type Values Removed Values Added
Title Privilege Elevation via Sandbox Escape in Chrome on Mac chromium-browser: Privilege elevation in Sandbox
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Apple
Apple macos
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Title Privilege Elevation via Sandbox Escape in Chrome on Mac
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Privilege elevation in Sandbox in Google Chrome on on Mac prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-250
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Oct 7, 2026, 3:55 AM
Reserved
Oct 6, 2026, 4:37 PM
Status
Analyzed
Published
Oct 6, 2026, 7:18 PM
Modified
Oct 7, 2026, 1:45 PM
Severity
Moderate
Public date
Oct 6, 2026, 6:41 PM