Chrome: Storage Auth Missing <153.0.8010.52, PDF Site Isolation Bypass
CVE-2026-93378 Published on September 17, 2026
Missing authorization in Storage in Google Chrome prior to 153.0.8010.52 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)
Vulnerability Analysis
CVE-2026-93378 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-93378 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-93378
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Affected Versions
Google Chrome:- Version 153.0.8010.52 and below 153.0.8010.52 is affected.