CVE-2026-11047: Insufficient validation of untrusted input in Base

Published Apr 2, 2026
·
Updated

Chromium: CVE-2026-11047 Insufficient validation of untrusted input in Base

Other sources

Inappropriate implementation in Base in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

— 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

5 affected componentsFixes available
Google Chrome<149.0.7827.53
149.0.7827.53
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<149.0.4022.52
All of the following
Google Chrome<149.0.7827.53
Microsoft Windows

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 (Base) to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  3. Compensating control

    Because Microsoft Edge is Chromium-based and ingests Chromium, ensure Edge is updated to include Chromium fixes for CVE-2026-11047 (Base sandbox-escape risk on Windows prior to 149.0.7827.53).

Event History

Apr 2, 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.

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Frequently Asked Questions

1

What is the severity of CVE-2026-11047?

CVE-2026-11047 has a critical severity rating of 9.6 on the CVSS scale.

2

What are the potential impacts of CVE-2026-11047?

CVE-2026-11047 could allow a remote attacker to perform a sandbox escape and gain unauthorized access to system resources.

3

How do I fix CVE-2026-11047?

To mitigate CVE-2026-11047, update Google Chrome or Microsoft Edge to version 149.0.7827.53 or later.

4

Which software is affected by CVE-2026-11047?

CVE-2026-11047 affects Google Chrome and Microsoft Edge based on Chromium.

5

What does CVE-2026-11047 exploit?

CVE-2026-11047 exploits insufficient validation of untrusted input in the Base component of affected browsers.

Company

Resources

Contact

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