CVE-2026-87485: Incorrect authorization in Google Chrome
Description
Incorrect authorization in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
CVSS v3.1
Score 3.1low
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's CORS implementation allows an attacker with control over the renderer process to bypass the web origin policy. The issue exists in versions prior to 153.0.8010.36. Exploitation requires prior compromise of the renderer process, after which a crafted HTML page can be used to circumvent origin restrictions, potentially exposing sensitive data or functionality across origins.
Potential Impact
An attacker who has already compromised the renderer process can bypass the web origin policy, potentially accessing or manipulating resources from other origins that should be protected. This undermines the browser's security model for isolating web content and could lead to unauthorized data access or actions within the browser context.
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. The vendor advisory linked provides official update information. No additional mitigations are specified beyond applying the update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-08T22:38:23.406Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","vendor":"Google"}]
Threat ID: 6aa0b173acd9273b49811a2a
Added to database: 09/09/2026, 01:08:03 UTC
Last enriched: 09/09/2026, 03:38:05 UTC
Last updated: 10/21/2026, 13:22:15 UTC
Views: 32
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