CVE-2026-110159: High Incorrect authorization in Updater on 2026-09-21

Published Sep 21, 2026
·
Updated

Chromium CVE-2026-110159: Incorrect authorization

Other sources

Incorrect authorization in Updater in Google Chrome prior to 155.0.8059.79 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)

— MITRE

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

5 affected componentsFixes available
Google Chrome<155.0.8059.79
Microsoft Edge (Chromium-based)<155.0.4283.60
155.0.4283.60
Google Chrome<155.0.8059.79
Microsoft Edge<155.0.4283.60
155.0.4283.60
Microsoft Edge<152.0.4191.137
152.0.4191.137

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 155.0.4283.60
  2. Upgrade

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

    Fixed in 152.0.4191.137
  3. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 155.0.8059.79

Event History

Oct 13, 2026
CVE Published
via MITRE·09:01 PM
Data Sourced
via MITRE·09:01 PM
DescriptionWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software
Oct 16, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Oct 20, 2026
Data Sourced
12:00 AM
Weakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Who is able to exploit this issue?

An attacker needs local access and the ability to run a local program on the affected system. The issue enables arbitrary code execution outside the Chrome sandbox.

2

Which Chrome versions are affected?

Google Chrome versions prior to 155.0.8059.79 are affected. Updating to 155.0.8059.79 or later addresses the affected version range described.

3

Are default Chrome installations affected?

The available information identifies the vulnerable component as Chrome Updater but does not state whether exploitation depends on a non-default updater configuration or setting.

Company

Resources

Contact

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