CVE-2026-11068: Use after free in WebSockets

Published Apr 3, 2026
·
Updated

Chromium: CVE-2026-11068 Use after free in WebSockets

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 WebSockets in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)

— MITRE

Credit

Google

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 Chromium to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  3. Compensating control

    If you cannot immediately upgrade, limit exposure by not allowing untrusted parties to load WebSocket-capable pages in the browser (e.g., avoid opening untrusted HTML/links that could trigger the crafted WebSockets use-after-free).

Event History

Apr 3, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 4, 2026
CVE Published
via MITRE·11:04 PM
Data Sourced
via MITRE·11:04 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.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-11068?

The severity of CVE-2026-11068 is high, with a CVSS score of 8.8.

2

How does CVE-2026-11068 affect WebSockets?

CVE-2026-11068 involves a use after free vulnerability in WebSockets that can lead to potential security breaches.

3

Which software is affected by CVE-2026-11068?

CVE-2026-11068 affects Google Chrome prior to version 149.0.7827.53 and Microsoft Edge (Chromium-based).

4

What are the potential consequences of CVE-2026-11068?

Exploiting CVE-2026-11068 could allow attackers to execute arbitrary code, leading to data corruption or control over the affected system.

5

How can I fix CVE-2026-11068?

To fix CVE-2026-11068, update Google Chrome or Microsoft Edge to the latest version that addresses this vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203