Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a… (CVE-2026-87603)
A missing authorization vulnerability in the FileSystem component of Google Chrome prior to version 153.0.8010.36 allows a remote attacker to bypass system access restrictions by using a crafted HTML page. The vulnerability is classified with medium severity by Chromium security. There is no CVSS score available, and no explicit patch information is provided in the source data.
AI Analysis
Technical Summary
CVE-2026-87603 describes a missing authorization flaw in the FileSystem feature of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker to bypass system access restrictions via a specially crafted HTML page. The vulnerability is categorized under CWE-862 (Missing Authorization). No detailed exploitation methods or impact beyond bypassing access restrictions are provided. No known exploits in the wild have been reported.
Potential Impact
An attacker who successfully exploits this vulnerability can bypass system access restrictions in the affected Chrome FileSystem component. This could potentially allow unauthorized access to system resources that should be protected by authorization controls. The exact scope and impact depend on the environment and usage of the FileSystem API within Chrome.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the affected versions are prior to 153.0.8010.36, updating to version 153.0.8010.36 or later is recommended once official confirmation is available. Monitor official Google Chrome security advisories for updates and patches addressing this vulnerability.
Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a… (CVE-2026-87603)
Description
A missing authorization vulnerability in the FileSystem component of Google Chrome prior to version 153.0.8010.36 allows a remote attacker to bypass system access restrictions by using a crafted HTML page. The vulnerability is classified with medium severity by Chromium security. There is no CVSS score available, and no explicit patch information is provided in the source data.
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-2026-87603 describes a missing authorization flaw in the FileSystem feature of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker to bypass system access restrictions via a specially crafted HTML page. The vulnerability is categorized under CWE-862 (Missing Authorization). No detailed exploitation methods or impact beyond bypassing access restrictions are provided. No known exploits in the wild have been reported.
Potential Impact
An attacker who successfully exploits this vulnerability can bypass system access restrictions in the affected Chrome FileSystem component. This could potentially allow unauthorized access to system resources that should be protected by authorization controls. The exact scope and impact depend on the environment and usage of the FileSystem API within Chrome.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the affected versions are prior to 153.0.8010.36, updating to version 153.0.8010.36 or later is recommended once official confirmation is available. Monitor official Google Chrome security advisories for updates and patches addressing this vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-p892-533f-47v3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87603"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f90acd9273b49618a69
Added to database: 09/09/2026, 13:30:56 UTC
Last enriched: 09/09/2026, 14:05:40 UTC
Last updated: 09/09/2026, 18:52:00 UTC
Views: 2
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