CVE-2026-11241: Insufficient validation of untrusted input in Cast

Published Mar 28, 2026
·
Updated

Chromium: CVE-2026-11241 Insufficient validation of untrusted input in Cast

Other sources

Insufficient validation of untrusted input in Cast in Google Chrome prior to 149.0.7827.53 allowed an attacker on the local network segment to perform privilege escalation via a crafted HTML page. (Chromium security severity: Low)

— 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

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 / Google Chrome to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  3. Compensating control

    Update Microsoft Edge (Chromium-based) to a release that includes the Chromium fix (Chromium 149.0.7827.53) as soon as that Edge release is available; monitor vendor updates and apply the Edge update promptly.

Event History

Mar 28, 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
Jun 5, 2026
Data Sourced
via NVD·12:17 AM
DescriptionSeverityWeaknessAffected Software
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-2026-11241?

The severity of CVE-2026-11241 is rated high with a CVSS score of 8.

2

How does CVE-2026-11241 allow privilege escalation?

CVE-2026-11241 allows privilege escalation by insufficiently validating untrusted input in Cast, enabling attackers on the local network to exploit this vulnerability through a crafted HTML page.

3

Which software is affected by CVE-2026-11241?

CVE-2026-11241 affects Google Chrome prior to version 149.0.7827.53 and Chromium-based Microsoft Edge browsers.

4

How do I fix CVE-2026-11241?

To fix CVE-2026-11241, users should update Google Chrome or Microsoft Edge to the latest version that addresses this vulnerability.

5

Is CVE-2026-11241 a network-based vulnerability?

Yes, CVE-2026-11241 can be exploited by an attacker on the local network segment.

Company

Resources

Contact

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