CVE-2026-106346: Improper state validation in DevTools on 2026-09-26

Published Oct 6, 2026
·
Updated

Chromium CVE-2026-106346: Improper state validation

Other sources

Improper state validation in DevTools in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (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

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 Google Chrome (Chromium DevTools) 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 20, 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 Chrome versions are affected?

Google Chrome versions prior to 155.0.8059.39 are affected.

2

Does an attacker need an account or elevated privileges to exploit this issue?

No attacker privileges are required. Exploitation requires user interaction and involves a crafted HTML page delivered remotely.

3

What is the stated impact if exploitation succeeds?

A successful exploit could allow arbitrary code execution inside the Chrome sandbox.

Company

Resources

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