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

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

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Meta Information

Published
2026-09-09
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 153.0.8010.36 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-459 The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

Attack-Flow Graph

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Executive Summary

This vulnerability involves incomplete cleanup in Google Chrome's Browser component before version 153.0.8010.36. A remote attacker could exploit it by using a crafted Chrome extension to bypass web origin policy through social engineering tactics.

Impact Analysis

An attacker could trick you into installing a malicious extension, allowing them to bypass security restrictions and potentially access sensitive data or perform unauthorized actions on websites you visit.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the vulnerability.

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