CVE-2026-8967: Information disclosure in the Graphics: WebGPU component

Published May 19, 2026
·
Updated

Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Affected Software

4 affected componentsFixes available
Mozilla Firefox<151
151
Mozilla Thunderbird<151
151
Mozilla Firefox<151.0.0
Mozilla Thunderbird<151.0.0

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 151
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 151
  3. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 151

Event History

May 19, 2026
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Updated
via Mozilla·12:00 AM
Affected Software
CVE Published
via MITRE·12:30 PM
Data Sourced
via MITRE·12:30 PM
Description
Data Sourced
via NVD·02:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 29, 58424
Event
via FIRST·11:54 AM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-8967?

CVE-2026-8967 is classified as a moderate severity vulnerability.

2

How do I fix CVE-2026-8967?

To fix CVE-2026-8967, update to Firefox or Thunderbird version 151 or later.

3

What products are affected by CVE-2026-8967?

CVE-2026-8967 affects Mozilla Firefox and Thunderbird versions prior to 151.

4

What type of vulnerability is CVE-2026-8967?

CVE-2026-8967 is an information disclosure vulnerability in the Graphics: WebGPU component.

5

When was CVE-2026-8967 disclosed?

CVE-2026-8967 was disclosed as part of the security updates for Firefox and Thunderbird in version 151.

Contact

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