CVE-2026-126860

chromium-browser: Incorrect authorization in FileSystem

Published Nov 11, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Incorrect authorization in FileSystem in Google Chrome prior to 157.0.8103.78 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Unauthorized File System Access in Chrome Enabling Sandbox Escape chromium-browser: Incorrect authorization in FileSystem
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Unauthorized File System Access in Chrome Enabling Sandbox Escape
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Description Incorrect authorization in FileSystem in Google Chrome prior to 157.0.8103.78 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-863
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 13, 2026, 5:00 AM
Reserved
Nov 11, 2026, 10:08 PM
Status
Analyzed
Published
Nov 11, 2026, 11:17 PM
Modified
Nov 13, 2026, 5:18 AM
Severity
Important
Public date
Nov 11, 2026, 10:39 PM