CVE-2026-93379: Incorrect authorization in Google Chrome
Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-93379 is an authorization bypass vulnerability in the ORB component of Google Chrome before version 153.0.8010.52. The flaw allows remote attackers to bypass site isolation protections by crafting a malicious HTML page. Site isolation is a security feature designed to separate different websites into different processes to prevent data leakage and improve security. The vulnerability was publicly disclosed and fixed in Chrome version 153.0.8010.52.
Potential Impact
Successful exploitation of this vulnerability allows a remote attacker to bypass site isolation, potentially enabling unauthorized access to data or processes that should be isolated between sites. This undermines a key security boundary in the browser, increasing the risk of cross-site data leakage or compromise.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 153.0.8010.52 or later, where this vulnerability has been fixed. No other mitigation actions are indicated by the vendor advisory.
CVE-2026-93379: Incorrect authorization in Google Chrome
Description
Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-93379 is an authorization bypass vulnerability in the ORB component of Google Chrome before version 153.0.8010.52. The flaw allows remote attackers to bypass site isolation protections by crafting a malicious HTML page. Site isolation is a security feature designed to separate different websites into different processes to prevent data leakage and improve security. The vulnerability was publicly disclosed and fixed in Chrome version 153.0.8010.52.
Potential Impact
Successful exploitation of this vulnerability allows a remote attacker to bypass site isolation, potentially enabling unauthorized access to data or processes that should be isolated between sites. This undermines a key security boundary in the browser, increasing the risk of cross-site data leakage or compromise.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 153.0.8010.52 or later, where this vulnerability has been fixed. No other mitigation actions are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-17T19:34:47.344Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html","vendor":"Google"}]
Threat ID: 6aac58d755bf5e2cf5ef74b0
Added to database: 09/17/2026, 21:17:11 UTC
Last enriched: 09/17/2026, 21:31:40 UTC
Last updated: 09/18/2026, 04:01:22 UTC
Views: 6
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