CVE-2026-87485: Low severity Google Chrome vulnerability
Chromium CVE-2026-87485: Incorrect authorization in CORS
Other sources
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)
— NVD
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.4234.32 - Upgrade
Upgrade
Chromium (Google Chrome/Chromium-based)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
Who is realistically exposed to this issue?
The issue affects Google Chrome versions prior to 153.0.8010.36, but exploitation requires that the attacker has already compromised the Chrome renderer process. A remote attacker can then use a crafted HTML page to bypass the web origin policy.
What must an attacker achieve before exploiting the origin-policy bypass?
The attacker must first compromise the renderer process. The provided information does not describe this issue as a standalone renderer-compromise vulnerability.
What version addresses the issue?
Google Chrome 153.0.8010.36 addresses the issue. Versions earlier than that are affected according to the provided description.