CVE-2026-8391

Summary

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox115.36 <= 115.*unaffected
MozillaFirefox140.11 <= 140.*unaffected
MozillaFirefox150.0.3 <= *unaffected
MozillaThunderbird140.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

firefox: thunderbird: Other issue in the JavaScript Engine component

Additional References

References