CVE-2026-11653: Insufficient validation of untrusted input in Extensions

Published May 14, 2026
·
Updated

Chromium: CVE-2026-11652 Use after free in Extensions

Other sources

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to bypass site isolation 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

Credit

Google

Affected Software

8 affected componentsFixes available
Google Google Chrome<149.0.7827.103
Google Chrome<149.0.7827.102
149.0.7827.102
Microsoft Edge<149.0.4022.62
All of the following
Google Chrome<149.0.7827.103
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)<149.0.4022.62
149.0.4022.62

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 149.0.7827.102
  2. Upgrade

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

    Fixed in 149.0.4022.62
  3. Upgrade

    Upgrade Google Chrome / Chromium (Extensions) to a version that resolves this vulnerability.

    Fixed in 149.0.7827.103

Event History

May 14, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 8, 2026
CVE Published
via MITRE·11:27 PM
Data Sourced
via MITRE·11:27 PM
DescriptionWeakness
Jun 9, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeaknessAffected Software
Jun 16, 2026
Data Sourced
via Microsoft·02:14 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:14 AM
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-2026-11653?

The severity of CVE-2026-11653 is rated medium with a CVSS score of 6.5.

2

How do I fix CVE-2026-11653?

To mitigate CVE-2026-11653, ensure that you update your Google Chrome or Microsoft Edge browser to the latest version available.

3

What type of vulnerability is CVE-2026-11653?

CVE-2026-11653 is categorized as an insufficient validation of untrusted input vulnerability.

4

Which software is affected by CVE-2026-11653?

CVE-2026-11653 affects Google Chrome and Microsoft Edge (Chromium-based) versions prior to 149.0.7827.103.

5

What can a remote attacker do with CVE-2026-11653?

A remote attacker can potentially bypass site isolation using a crafted HTML page due to the vulnerability described in CVE-2026-11653.

Company

Resources

Contact

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