CVE-2026-87442
Received Received - Intake

Confused Deputy in Prerender in Google Chrome

Vulnerability report for CVE-2026-87442, 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

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)

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-441 The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is a confused deputy issue in Prerender in Google Chrome before version 153.0.8010.36. It allows a remote attacker who has already compromised the renderer process to bypass web origin policy by using a specially crafted HTML page.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions, potentially accessing or manipulating data from different origins than intended. This could lead to unauthorized actions or data theft if the renderer process is already compromised.

Mitigation Strategies

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

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