CVE-2026-6782: Information disclosure in the IP Protection component

Published Apr 21, 2026
·
Updated

Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Affected Software

4 affected componentsFixes available
Mozilla Firefox<150
150
Mozilla Thunderbird<150
150
Mozilla Firefox<150.0
Mozilla Thunderbird<150.0

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 150
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 150
  3. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 150

Event History

Apr 21, 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·12:41 PM
Data Sourced
via MITRE·12:41 PM
Description
Data Sourced
via NVD·01:16 PM
DescriptionSeverityWeaknessAffected Software
May 2, 58290
Event
via FIRST·04:31 AM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-6782?

CVE-2026-6782 has been classified as an information disclosure vulnerability, which may expose sensitive data.

2

How do I fix CVE-2026-6782?

To fix CVE-2026-6782, update to Firefox or Thunderbird version 150 or later.

3

Which versions of Mozilla products are affected by CVE-2026-6782?

CVE-2026-6782 affects Mozilla Firefox and Thunderbirds versions before 150.

4

What component is impacted by CVE-2026-6782?

CVE-2026-6782 impacts the IP Protection component of the affected software.

5

Is CVE-2026-6782 specific to a certain platform?

CVE-2026-6782 affects the desktop versions of Mozilla Firefox and Thunderbird.

Contact

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