CVE-2026-78974: UI misrepresentation in Linux Toolkit Theming

Published Apr 16, 2026
·
Updated

Chromium: CVE-2026-78974 UI misrepresentation in Linux Toolkit Theming

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

UI misrepresentation in Linux Toolkit Theming in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)

— MITRE

Credit

Francesco Topol

Affected Software

5 affected componentsFixes available
Google Chrome<152.0.7977.65
Google Chrome<152.0.7977.64
152.0.7977.64
Microsoft Edge<152.0.4191.53
Microsoft Edge (Chromium-based)<152.0.4191.53
152.0.4191.53
Google Chrome<152.0.7977.65

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 152.0.7977.64
  2. Upgrade

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

    Fixed in 152.0.4191.53
  3. Upgrade

    Upgrade Google Chrome/Chromium (Chromium-based browsers) to a version that resolves this vulnerability.

    Fixed in 152.0.7977.65
  4. Compensating control

    Mitigate social-engineering risk by restricting exposure of affected browser users to untrusted/crafted HTML pages (e.g., through user education and web filtering) until updated.

Event History

Apr 16, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
WeaknessAffected Software
Aug 25, 2026
CVE Published
via MITRE·08:10 PM
Data Sourced
via MITRE·08:10 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software
Aug 28, 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.

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

The attacker must persuade a user to interact with a crafted HTML page. The issue is described as relying on social engineering.

2

Which installations should be considered affected?

Google Chrome versions earlier than 152.0.7977.65 are affected. Systems running that version or a later version are not identified as affected by the provided information.

Company

Resources

Contact

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