Bug 2428961 (CVE-2026-0885)

Summary:	CVE-2026-0885 firefox: thunderbird: Use-after-free in the JavaScript: GC component
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gotiwari, jgrulich, jhorak, mvyas, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript: GC component	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-01-13 14:01:41 UTC

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7.

Comment 1 errata-xmlrpc 2026-01-15 08:19:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:0667 https://access.redhat.com/errata/RHSA-2026:0667

Comment 2 errata-xmlrpc 2026-01-15 11:47:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:0694 https://access.redhat.com/errata/RHSA-2026:0694

Comment 3 errata-xmlrpc 2026-01-21 11:56:46 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:0924 https://access.redhat.com/errata/RHSA-2026:0924

Comment 4 errata-xmlrpc 2026-01-27 06:51:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:1320 https://access.redhat.com/errata/RHSA-2026:1320

Comment 5 errata-xmlrpc 2026-01-27 17:06:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:1413 https://access.redhat.com/errata/RHSA-2026:1413

Comment 6 errata-xmlrpc 2026-01-27 17:12:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:1415 https://access.redhat.com/errata/RHSA-2026:1415

Comment 7 errata-xmlrpc 2026-01-27 17:22:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:1414 https://access.redhat.com/errata/RHSA-2026:1414

Comment 8 errata-xmlrpc 2026-01-28 04:05:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:1461 https://access.redhat.com/errata/RHSA-2026:1461

Comment 9 errata-xmlrpc 2026-01-28 04:17:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:1462 https://access.redhat.com/errata/RHSA-2026:1462

Comment 10 errata-xmlrpc 2026-01-28 08:29:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2026:1471 https://access.redhat.com/errata/RHSA-2026:1471

Comment 11 errata-xmlrpc 2026-01-28 14:58:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:1487 https://access.redhat.com/errata/RHSA-2026:1487