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. (CVE-2026-93379)
An incorrect authorization vulnerability in ORB within Google Chrome versions prior to 153.0.8010.52 allows a remote attacker to bypass site isolation by using a crafted HTML page. This vulnerability is classified with high severity by Chromium security. No CVSS score is provided.
AI Analysis
Technical Summary
CVE-2026-93379 describes an authorization flaw in the ORB component of Google Chrome before version 153.0.8010.52. This flaw enables a remote attacker to bypass the browser's site isolation security feature through a specially crafted HTML page. Site isolation is a critical security mechanism designed to separate web content from different origins to prevent data leaks and cross-site attacks. The vulnerability is categorized under CWE-863 (Incorrect Authorization).
Potential Impact
Successful exploitation allows a remote attacker to bypass site isolation protections, potentially enabling unauthorized access to data or interactions across site boundaries that should be isolated. This undermines a key security boundary in the browser, increasing the risk of data leakage or cross-origin attacks.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.52 and later. Users and administrators should update to this version or a newer release to remediate the vulnerability. No additional mitigation steps are indicated.
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. (CVE-2026-93379)
Description
An incorrect authorization vulnerability in ORB within Google Chrome versions prior to 153.0.8010.52 allows a remote attacker to bypass site isolation by using a crafted HTML page. This vulnerability is classified with high severity by Chromium security. No CVSS score is provided.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-93379 describes an authorization flaw in the ORB component of Google Chrome before version 153.0.8010.52. This flaw enables a remote attacker to bypass the browser's site isolation security feature through a specially crafted HTML page. Site isolation is a critical security mechanism designed to separate web content from different origins to prevent data leaks and cross-site attacks. The vulnerability is categorized under CWE-863 (Incorrect Authorization).
Potential Impact
Successful exploitation allows a remote attacker to bypass site isolation protections, potentially enabling unauthorized access to data or interactions across site boundaries that should be isolated. This undermines a key security boundary in the browser, increasing the risk of data leakage or cross-origin attacks.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.52 and later. Users and administrators should update to this version or a newer release to remediate the vulnerability. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-pj82-h28q-g9w3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-93379"]
- State
- PUBLISHED
Threat ID: 6aac8ddf55bf5e2cf548ff4e
Added to database: 09/18/2026, 01:03:27 UTC
Last enriched: 09/18/2026, 01:24:02 UTC
Last updated: 09/18/2026, 03:01:23 UTC
Views: 2
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