CVE-2026-84354: Incorrect authorization in Google Chrome
Description
CVE-2026-84354 is a critical security vulnerability in Google Chrome prior to version 152.0.7977.75. It involves incorrect authorization in the FileSystem component, which allows a remote attacker to execute arbitrary code outside the browser sandbox by tricking a user into visiting a crafted HTML page. The vulnerability requires user interaction (social engineering) and affects confidentiality, integrity, and availability.
CVSS v3.1
Score 9.6critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is due to incorrect authorization checks in the FileSystem feature of Google Chrome versions before 152.0.7977.75. An attacker can exploit this by convincing a user to open a specially crafted HTML page, enabling execution of arbitrary code outside the sandbox environment. The CVSS 3.1 base score is 9.6 (critical), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote code execution outside the sandbox, compromising the security boundaries of the browser. This can lead to full system compromise, data theft, or disruption of service. The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
A fixed version of Google Chrome is available at 152.0.7977.75. Users and administrators should update to this version or later to remediate the vulnerability. There are no indications that the vulnerability is mitigated by other means or that no action is required.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-77ww-pg49-9w44
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84354"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6a98452facd9273b496aa84e
Added to database: 09/02/2026, 15:47:59 UTC
Last enriched: 09/07/2026, 20:52:05 UTC
Last updated: 10/16/2026, 18:48:25 UTC
Views: 74
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