REDHAT-BUG-2479871: Low severity Mozilla Firefox vulnerability

Published May 19, 2026
·
Updated

Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

Affected Software

2 affected components
Mozilla Firefox<151
Mozilla Firefox ESR<140.11

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Mozilla Firefox to a version that resolves this vulnerability.

    Fixed in 151
  2. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 140.11

Event History

May 19, 2026
Data Sourced
via Red Hat·02:03 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2479871?

The severity of REDHAT-BUG-2479871 is classified as low.

2

What issue does REDHAT-BUG-2479871 address?

REDHAT-BUG-2479871 addresses a spoofing issue in the Form Autofill component.

3

Which versions of Firefox resolved the vulnerability described in REDHAT-BUG-2479871?

The vulnerability in REDHAT-BUG-2479871 was fixed in Firefox version 151 and Firefox ESR version 140.11.

4

Is the vulnerability REDHAT-BUG-2479871 present in earlier versions of Firefox?

Yes, the vulnerability REDHAT-BUG-2479871 affects earlier versions of Mozilla Firefox and Mozilla Firefox ESR prior to the fixed versions.

5

How can I mitigate the risks associated with REDHAT-BUG-2479871?

To mitigate the risks associated with REDHAT-BUG-2479871, users should update to the latest version of Firefox or Firefox ESR.

Contact

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