CVE-2026-87487: Missing authorization in Google Chrome
Description
CVE-2026-87487 is a missing authorization vulnerability in the FileSystem component of Google Chrome prior to version 153.0.8010.36. It allows a remote attacker who has compromised the renderer process and used social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. The vulnerability has a high severity rating with a CVSS score of 8.3.
CVSS v3.1
Score 8.3high
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves missing authorization checks in the FileSystem feature of Google Chrome versions before 153.0.8010.36. An attacker who has already compromised the renderer process and can trick a user through social engineering may execute arbitrary code outside the sandbox environment by delivering a specially crafted HTML page. The issue is tracked as CVE-2026-87487 and has been assigned a high CVSS score of 8.3, indicating significant impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could lead to arbitrary code execution outside the sandbox, compromising the security boundaries of the browser. This could allow an attacker to gain elevated privileges and perform actions beyond the renderer process, potentially affecting the host system's security.
Mitigation Recommendations
A fixed version of Google Chrome is available starting from 153.0.8010.36. Users and administrators should update to this version or later to remediate the vulnerability. The vendor advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html confirms the availability of this update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-08T22:38:26.114Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","vendor":"Google"}]
Threat ID: 6aa0b173acd9273b49811a2e
Added to database: 09/09/2026, 01:08:03 UTC
Last enriched: 09/17/2026, 01:40:33 UTC
Last updated: 10/21/2026, 13:20:24 UTC
Views: 30
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