CVE-2026-11201: Use after free in ServiceWorker

Published Apr 22, 2026
·
Updated

Chromium: CVE-2026-11201 Use after free in ServiceWorker

Other sources

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

Use after free in ServiceWorker in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: Medium)

— MITRE

Credit

Weipeng Jiang@@Krace(VRI)

Affected Software

7 affected componentsFixes available
Google Chrome<149.0.7827.53
149.0.7827.53
All of the following
Google Chrome<149.0.7827.53
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<149.0.4022.52

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 149.0.7827.53
  2. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  3. Upgrade

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

    Fixed in 149.0.7827.53
  4. Compensating control

    Until the browser is updated, block or restrict installation of untrusted/third-party Chrome/Edge extensions (e.g., via enterprise extension installation policies or by instructing users to not install untrusted extensions) and remove any suspicious or unrecognized extensions from endpoints.

Event History

Apr 22, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 4, 2026
CVE Published
via MITRE·11:05 PM
Data Sourced
via MITRE·11:05 PM
DescriptionWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeaknessAffected Software
Jun 5, 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-2026-11201?

CVE-2026-11201 has a high severity rating of 8.8 based on the CVSS score.

2

How do I fix CVE-2026-11201?

To fix CVE-2026-11201, update Google Chrome or Microsoft Edge to the latest version available since it addresses this vulnerability.

3

What does CVE-2026-11201 affect?

CVE-2026-11201 affects Google Chrome and Microsoft Edge, specifically the ServiceWorker component.

4

What type of vulnerability is CVE-2026-11201?

CVE-2026-11201 is a Use After Free vulnerability, which can lead to potential memory corruption.

5

When was CVE-2026-11201 published?

CVE-2026-11201 was published on April 22, 2026.

Company

Resources

Contact

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