CVE-2026-87473: Incorrect authorization in Google Chrome
Description
Incorrect authorization in FileHandling in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)
CVSS v3.1
Score 6.5medium
Affected software
Chrome
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-87473 affects Google Chrome versions before 153.0.8010.36. It is caused by incorrect authorization checks in the FileHandling feature, which can be exploited by a remote attacker through social engineering techniques. By convincing a user to open a specially crafted HTML page, the attacker can bypass system access restrictions. The issue is classified with a medium severity and a CVSS 3.1 base score of 6.5, indicating a moderate impact on integrity without affecting confidentiality or availability.
Potential Impact
An attacker can bypass system access restrictions, potentially leading to unauthorized actions or modifications on the affected system. The vulnerability requires user interaction (UI:R) and does not impact confidentiality or availability but does affect integrity. There are no known exploits in the wild at this time.
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 at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html for detailed patch information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-08T22:38:06.247Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","vendor":"Google"}]
Threat ID: 6aa0b172acd9273b49811a01
Added to database: 09/09/2026, 01:08:02 UTC
Last enriched: 09/17/2026, 01:06:33 UTC
Last updated: 10/23/2026, 01:15:27 UTC
Views: 39
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.