CVE-2026-106270: Incorrect authorization in WebAppInstalls

Published Aug 27, 2026
·
Updated

Incorrect authorization in WebAppInstalls in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

Credit

Google

Affected Software

2 affected componentsFixes available
Google Chrome<155.0.8059.39
155.0.8059.39
Google Chrome<155.0.8059.39

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 155.0.8059.39
  2. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 155.0.8059.39

Event History

Aug 27, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Oct 6, 2026
CVE Published
via MITRE·06:41 PM
Data Sourced
via MITRE·06:41 PM
DescriptionWeakness
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

An attacker needs to get a user to interact with a crafted HTML page. The CVSS vector indicates the attack can be delivered over the network without attacker privileges, but user interaction is required.

2

What is the impact of successful exploitation?

A remote attacker could spoof UI elements. The CVSS assessment indicates low confidentiality impact and low availability impact, with no integrity impact.

3

Which Chrome versions should be remediated?

Google Chrome versions prior to 155.0.8059.39 are affected. Update Chrome to version 155.0.8059.39 or later.

Company

Resources

Contact

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