CVE-2026-87436: Medium severity Google Chrome vulnerability
Chromium CVE-2026-87436: Incomplete cleanup in Browser
Other sources
Incomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (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
Google Chrome / Chromium (Browser)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
Which Chrome installations are affected?
Google Chrome versions prior to 153.0.8010.36 are affected.
What does exploitation require from an attacker?
The attacker must use social engineering and a crafted Chrome extension. The issue can then be used to bypass the web origin policy.