Vulnerability/
REDHAT-BUG-2550452

REDHAT-BUG-2550452: Medium severity Mozilla Firefox vulnerability

Q: Which Firefox product lines are in scope for triage?

Mozilla Firefox and Mozilla Firefox ESR are listed as affected software.

Q: Which Red Hat errata correspond to this issue?

The listed errata are RHSA-2026:89756, RHSA-2026:89757, and RHSA-2026:93443.

Published Oct 13, 2026

Updated

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

Affected Software

2 affected components

Mozilla Firefox<158

Mozilla Firefox ESR<153.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Firefox to a version that resolves this vulnerability.
Fixed in 158
Upgrade
Upgrade Firefox ESR to a version that resolves this vulnerability.
Fixed in 153.5

Event History

Oct 13, 2026

Data Sourced

via Red Hat·01:04 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which Firefox product lines are in scope for triage?

Mozilla Firefox and Mozilla Firefox ESR are listed as affected software.

Which Red Hat errata correspond to this issue?

The listed errata are RHSA-2026:89756, RHSA-2026:89757, and RHSA-2026:93443.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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