CVE-2026-106329: High Incorrect authorization in FileSystem

Published Oct 6, 2026
·
Updated

Chromium CVE-2026-106329: Incorrect authorization

Other sources

Incorrect authorization in FileSystem in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

— NVD

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Affected Software

2 affected componentsFixes available
Google Chrome<155.0.8059.39
Microsoft Edge (Chromium-based)<155.0.4283.45
155.0.4283.45

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 155.0.4283.45
  2. Upgrade

    Upgrade Chromium to a version that resolves this vulnerability.

    Fixed in 155.0.8059.39

Event History

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
Oct 16, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Oct 26, 2026
Data Sourced
12:00 AM
SeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which installations should be prioritized for remediation?

Google Chrome installations running versions earlier than 155.0.8059.39 should be updated. The issue is rated critical with a CVSS score of 9.6.

2

Does exploitation require an authenticated account or elevated privileges?

No. The CVSS vector indicates no privileges are required by the attacker (PR:N).

3

Does a user need to take action for an attack to succeed?

Yes. Exploitation requires user interaction and relies on social engineering to get the target to interact with a crafted HTML page.

4

What is the recommended remediation?

Update Google Chrome to version 155.0.8059.39 or later. No alternative workaround or compensating control is provided in the available data.

Company

Resources

Contact

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