CVE-2026-8948

Summary

Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Affected Software

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: total

firefox: thunderbird: Same-origin policy bypass in the DOM: Networking component

Additional References

• https://access.redhat.com/security/cve/CVE-2026-8948
• https://bugzilla.redhat.com/show_bug.cgi?id=2479850
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8948.json

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2038803
• https://www.mozilla.org/security/advisories/mfsa2026-46/
• https://www.mozilla.org/security/advisories/mfsa2026-50/

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