CVE-2026-6307: Type Confusion in Turbofan

Published Mar 29, 2026
·
Updated

Chromium: CVE-2026-6307 Type Confusion in Turbofan

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

Type Confusion in Turbofan in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

— MITRE

Credit

Project WhatForLunch@@pjwhatforlunch

Affected Software

7 affected componentsFixes available
Google Chrome<147.0.7727.101
147.0.7727.101
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<147.0.3912.72
All of the following
Google Chrome<147.0.7727.101
Any of the following
Apple macOS
Linux Linux kernel
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 147.0.7727.101
  2. Upgrade

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

    Fixed in 147.0.7727.101
  3. Upgrade

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

    Fixed in 147.0.7727.101

Event History

Mar 29, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Apr 15, 2026
CVE Published
via MITRE·07:04 PM
Data Sourced
via MITRE·07:04 PM
DescriptionWeakness
Data Sourced
via NVD·08:16 PM
DescriptionSeverityWeaknessAffected Software
Apr 17, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software
Nov 28, 58273
Event
via FIRST·11:04 AM

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-2026-6307?

CVE-2026-6307 is classified as a high severity vulnerability due to its potential for type confusion in the Turbofan component of Chromium.

2

How do I fix CVE-2026-6307?

To mitigate CVE-2026-6307, update Google Chrome to version 147.0.7727.101 or later, or update Microsoft Edge (Chromium-based) to a version that includes the fix.

3

Which software is affected by CVE-2026-6307?

CVE-2026-6307 affects Google Chrome versions prior to 147.0.7727.101 and Microsoft Edge (Chromium-based) versions incorporating Chromium.

4

Are there alternative browsers impacted by CVE-2026-6307?

Currently, CVE-2026-6307 is specifically related to Google Chrome and Microsoft Edge, and does not affect other browsers like Firefox or Safari.

5

Where can I find more information about CVE-2026-6307?

For detailed information about CVE-2026-6307, users can refer to the official Google Chrome and Microsoft updates and release notes.

Company

Resources

Contact

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