CVE-2026-87465: Medium severity Google Google Chrome vulnerability
Chromium CVE-2026-87465: Incorrect authorization in Downloads
Other sources
Incorrect authorization in Downloads in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to spoof UI elements 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/Chrome (renderer->Downloads authorization)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker must already have compromised the Chrome renderer process. The issue is then triggered through a crafted HTML page to spoof UI elements.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.36 are affected. Updating to 153.0.8010.36 or later addresses the reported vulnerable version range.
What is the practical impact of successful exploitation?
A compromised renderer process could spoof Chrome UI elements. This may make attacker-controlled content appear to be trusted browser interface content.