CVE-2026-106312

Analyzed Analyzed - Analysis Complete

Missing Authorization in Google Chrome Sign-In Feature

Publication date: 2026-10-06

Last updated on: 2026-10-07

Assigner: Chrome

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-07

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106312

EUVD

EUVD-2026-93595

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 involves a missing authorization check in the SignIn process of Google Chrome versions before 155.0.8059.39. A remote attacker could exploit this by tricking a user into installing a malicious Chrome extension, which would then allow the attacker to access sensitive information.

Detection Guidance

This vulnerability involves missing authorization in SignIn in Google Chrome, which could allow a remote attacker to obtain sensitive information via a crafted Chrome extension. Detection primarily involves checking Chrome version and reviewing installed extensions for suspicious activity.

Impact Analysis

If exploited, this vulnerability could allow an attacker to obtain sensitive information from your browser or system. This might include personal data, login credentials, or other confidential details, depending on the extension's permissions.

Compliance Impact

The vulnerability involves missing authorization in SignIn, potentially allowing unauthorized access to sensitive information via a crafted Chrome extension. This could lead to data breaches, which may impact compliance with GDPR (data protection) and HIPAA (healthcare data privacy) by exposing personal or protected health information.

Mitigation Strategies

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

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