CVE-2026-6317: Use after free in Cast

Published Apr 15, 2026
·
Updated

Chromium: CVE-2026-6317 Use after free in Cast

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

Use after free in Cast in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

— MITRE

Affected Software

6 affected componentsFixes available
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 Chromium/Cast to a version that resolves this vulnerability.

    Fixed in 147.0.7727.101

Event History

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
Jun 12, 2026
Data Sourced
12:00 AM
SeverityWeakness

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-2026-6317?

CVE-2026-6317 is rated as a high severity vulnerability due to its potential use after free exploit.

2

How do I fix CVE-2026-6317?

To fix CVE-2026-6317, update Google Chrome to version 147.0.7727.101 or later.

3

Which versions of Microsoft Edge are affected by CVE-2026-6317?

Microsoft Edge (Chromium-based) versions prior to 147.0.3912.72 are affected by CVE-2026-6317.

4

Is CVE-2026-6317 present in older versions of Google Chrome?

Yes, CVE-2026-6317 is present in Google Chrome versions prior to 147.0.7727.101.

5

What type of vulnerability is CVE-2026-6317?

CVE-2026-6317 is classified as a use after free vulnerability in the Cast component of Google Chrome.

Company

Resources

Contact

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