CVE-2026-106266
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Confused Deputy in Google Chrome Contextual Tasks

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: Chrome

Description
Confused deputy in Contextual Tasks in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

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Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-106266
EUVD
EUVD-2026-93685

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 155.0.8059.39

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.

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Executive Summary

This vulnerability is a confused deputy issue in Google Chrome's Contextual Tasks feature. It allows an attacker who has already compromised the renderer process to bypass web origin policy and access privileged pages through a specially crafted HTML page. This is classified as a medium severity issue by Chromium.

Impact Analysis

If you use Google Chrome versions prior to 155.0.8059.39, an attacker who tricks you into visiting a malicious website could potentially access sensitive pages or data in your browser that they normally shouldn't be able to reach. This could lead to unauthorized access to accounts or information.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the vulnerability.

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