CVE-2026-87442: Low severity Google Chrome vulnerability
Chromium CVE-2026-87442: Confused deputy in Prerender
Other sources
Confused deputy in Prerender in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
— MITRE
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/Edge 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?
Users of Google Chrome versions earlier than 153.0.8010.36 are affected only in a scenario where the renderer process has already been compromised. The issue could then be used to potentially bypass the web origin policy.
What does an attacker need to exploit this vulnerability?
The attacker needs to have compromised the Chrome renderer process and use a crafted HTML page. The available information does not indicate that this issue alone provides initial renderer compromise.
What is the remediation?
Update Google Chrome to version 153.0.8010.36 or later. The provided information does not identify an alternative mitigation for systems that cannot be updated immediately.