CVE-2026-106409: Incorrect reference resolution in WebAppInstalls

Published Sep 9, 2026
·
Updated

Incorrect reference resolution in WebAppInstalls in Google Chrome on on Mac prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: Medium)

Credit

Quyen Son at VinFast@@zer0qs

Affected Software

3 affected componentsFixes available
Google Chrome<155.0.8059.39
155.0.8059.39
All of the following
Google Chrome<155.0.8059.39
Apple macOS

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

Sep 9, 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·07:18 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which systems are affected?

The issue affects Google Chrome on Mac versions prior to 155.0.8059.39. The provided information does not identify impact on other operating systems.

2

What would an attacker need to exploit this?

Exploitation requires compromise of the Chrome renderer process and user interaction. The attacker then uses crafted network traffic to execute arbitrary code outside Chrome's sandbox.

3

Is this a remotely exploitable issue without prior access?

Not based on the provided CVSS vector: it is network-accessible and requires no privileges, but exploitation has high attack complexity, requires user interaction, and depends on the renderer process already being compromised.

4

What is the remediation?

Update Google Chrome on Mac to version 155.0.8059.39 or later. The supplied data does not provide a workaround or mitigation for systems that cannot be updated immediately.

Company

Resources

Contact

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