Bug 2550418 (CVE-2026-109757)

Summary: CVE-2026-109757 firefox: Sandbox escape due to race condition in the Networking component
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: gotiwari, jhorak, mvyas, rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to race condition in the Networking component
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Description OSIDB Bzimport 2026-10-13 12:59:37 UTC
Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

Comment 1 Jon Orris 2026-10-26 04:10:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:89757 https://access.redhat.com/errata/RHSA-2026:89757