Bug 2368755 (CVE-2025-5266)

Summary: CVE-2025-5266 firefox: thunderbird: Script element events leaked cross-origin resource status
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: erack, gotiwari, jhorak, mvyas, tpopela
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Script elements loading cross-origin resources generate load and error events which can leak information enabling XS-Leaks attacks.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2025-05-27 13:01:37 UTC
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox < 139 and Firefox ESR < 128.11.

Comment 1 errata-xmlrpc 2025-05-29 07:11:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:8293 https://access.redhat.com/errata/RHSA-2025:8293

Comment 2 errata-xmlrpc 2025-05-29 11:26:45 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:8308 https://access.redhat.com/errata/RHSA-2025:8308

Comment 3 errata-xmlrpc 2025-06-02 02:10:06 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:8341 https://access.redhat.com/errata/RHSA-2025:8341

Comment 4 errata-xmlrpc 2025-06-05 12:23:45 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:8598 https://access.redhat.com/errata/RHSA-2025:8598

Comment 5 errata-xmlrpc 2025-06-05 12:29:55 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:8599 https://access.redhat.com/errata/RHSA-2025:8599

Comment 6 errata-xmlrpc 2025-06-05 17:13:34 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:8608 https://access.redhat.com/errata/RHSA-2025:8608

Comment 7 errata-xmlrpc 2025-06-05 18:54:43 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:8607 https://access.redhat.com/errata/RHSA-2025:8607