CVE-2026-121104

chromium-browser: Incorrect authorization in FileSystem

Published Nov 3, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Incorrect authorization in FileSystem in Google Chrome prior to 157.0.8103.38 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 chromium-browser: Incorrect authorization in FileSystem
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title FileSystem Authorization Bypass in Chrome Enables Arbitrary Code Execution
Type Values Removed Values Added
Title FileSystem Authorization Bypass in Chrome Enables Arbitrary Code Execution
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Description Incorrect authorization in FileSystem in Google Chrome prior to 157.0.8103.38 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 5, 2026, 4:56 AM
Reserved
Nov 3, 2026, 9:29 AM
Status
Analyzed
Published
Nov 3, 2026, 9:17 PM
Modified
Nov 5, 2026, 5:18 AM
Severity
Important
Public date
Nov 3, 2026, 8:42 PM