CVE-2026-12018: High severity Google Chrome vulnerability

Published May 26, 2026
·
Updated

Chromium: CVE-2026-12018 Inappropriate implementation  Mojo

Other sources

Inappropriate implementation in Mojo in Google Chrome on Windows prior to 149.0.7827.115 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (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

Credit

Google

Affected Software

6 affected componentsFixes available
Google Chrome<149.0.7827.115
Microsoft Edge<149.0.4022.69
Google Chrome<149.0.7827.114
149.0.7827.114
All of the following
Google Chrome<149.0.7827.115
Microsoft Windows
Microsoft Edge (Chromium-based)<149.0.4022.69
149.0.4022.69

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 149.0.7827.114
  2. Upgrade

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

    Fixed in 149.0.4022.69
  3. Upgrade

    Upgrade Chromium/Google Chrome (Mojo) on Windows to a version that resolves this vulnerability.

    Fixed in 149.0.7827.115
  4. Upgrade

    Upgrade Microsoft Edge (Chromium-based) to a version that resolves this vulnerability.

    Fixed in 149.0.7827.115

Event History

May 26, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 11, 2026
CVE Published
via MITRE·08:48 PM
Data Sourced
via MITRE·08:48 PM
DescriptionWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 15, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-12018?

CVE-2026-12018 has a high severity rating of 8.8.

2

How do I fix CVE-2026-12018?

To mitigate CVE-2026-12018, update Google Chrome to version 149.0.7827.115 or later.

3

What type of vulnerability is CVE-2026-12018?

CVE-2026-12018 is a privilege escalation vulnerability that affects Google Chrome.

4

Who is affected by CVE-2026-12018?

Users of Google Chrome on Windows prior to version 149.0.7827.115 are affected by CVE-2026-12018.

5

Can CVE-2026-12018 be exploited remotely?

CVE-2026-12018 requires local access for exploitation, as it involves a malicious file.

Company

Resources

Contact

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