CVE-2026-87493: Missing authorization in Google Chrome
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 via a crafted HTML page, leveraging social engineering. The vulnerability has a medium severity rating.
CVSS v3.1
Score 6.5medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87493 is a vulnerability in Google Chrome's FileSystem feature before version 153.0.8010.36. It involves missing authorization checks that enable a remote attacker to bypass system access restrictions by tricking a user into visiting a maliciously crafted HTML page. The vulnerability is rated medium severity with a CVSS score of 6.5, indicating that it requires user interaction and has a network attack vector with low attack complexity and no privileges required.
Potential Impact
An attacker can bypass system access restrictions, potentially leading to unauthorized actions or changes within the FileSystem context of the browser. The attack requires user interaction (social engineering) and does not impact confidentiality or availability but can impact integrity.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.36. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory for confirmation and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-08T22:38:43.658Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","vendor":"Google"}]
Threat ID: 6aa0b175acd9273b49811a49
Added to database: 09/09/2026, 01:08:05 UTC
Last enriched: 09/17/2026, 01:24:37 UTC
Last updated: 10/21/2026, 13:20:24 UTC
Views: 22
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