CVE-2026-106208

Modified Modified - Updated After Analysis

Missing Authorization in Chrome API Leads to Information Disclosure

Publication date: 2026-10-06

Last updated on: 2026-10-11

Assigner: Chrome

Description

Missing authorization in API in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to leak sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-06

Last Modified

2026-10-11

Generated

2026-10-19

AI Q&A

2026-10-06

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106208

EUVD

EUVD-2026-93856

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 155.0.8059.39 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability is a missing authorization check in Google Chrome's API. It allows a remote attacker to bypass security controls and access sensitive information by tricking a user into installing a malicious Chrome extension through social engineering tactics.

Detection Guidance

This vulnerability involves missing authorization in Google Chrome's API, which could allow information leaks via malicious extensions. Detection requires checking Chrome versions and reviewing installed extensions for suspicious activity. No specific commands are provided in the context.

Impact Analysis

If you use Google Chrome versions prior to 155.0.8059.39, an attacker could exploit this to steal personal data, login credentials, or other sensitive information from your browser sessions. The attack requires user interaction, such as installing a malicious extension.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's safeguards for protected health information. Organizations may face compliance penalties if user data is leaked due to this flaw.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the missing authorization issue in the API.

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