CVE-2026-87436
Received
Received - Intake
Incomplete Cleanup in Chrome Browser Allows Origin Policy Bypass
Vulnerability report for CVE-2026-87436, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-09
Last updated on: 2026-09-09
Assigner: Chrome
Description
Description
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)
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chrome | to 153.0.8010.36 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-459 | The product does not properly "clean up" and remove temporary or supporting resources after they have been used. |