CVE-2026-11701: Insufficient validation of untrusted input in Guest View

Published May 25, 2026
·
Updated

Chromium: CVE-2026-11700 Use after free in Tracing

Other sources

Inappropriate implementation in Guest View in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to perform UI spoofing 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

8 affected componentsFixes available
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 Chromium / Google Chrome to a version that resolves this vulnerability.

    Fixed in 149.0.7827.103
  4. Upgrade

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

    Fixed in 149.0.7827.103

Event History

May 25, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 8, 2026
CVE Published
via MITRE·11:28 PM
Data Sourced
via MITRE·11:28 PM
DescriptionWeakness
Jun 9, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeaknessAffected Software
Jun 16, 2026
Data Sourced
via Microsoft·02:15 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:15 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-11701?

The severity of CVE-2026-11701 is rated as medium with a score of 5.4.

2

How does CVE-2026-11701 affect Google Chrome?

CVE-2026-11701 allows remote attackers to perform UI spoofing by exploiting insufficient validation of untrusted input in the Guest View feature.

3

How do I fix CVE-2026-11701?

To fix CVE-2026-11701, users should upgrade to Google Chrome version 149.0.7827.103 or later.

4

What causes CVE-2026-11701?

CVE-2026-11701 is caused by inappropriate implementation that fails to properly validate untrusted input within the Guest View.

5

Can CVE-2026-11701 lead to data theft?

While CVE-2026-11701 focuses on UI spoofing, it does not directly indicate a risk of data theft, but it may be used to trick users into providing sensitive information.

Contact

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