CVE-2026-100816

Summary

Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox153.4 <= 153.*unaffected
MozillaFirefox157 <= *unaffected
MozillaThunderbird153.4 <= 153.*unaffected
MozillaThunderbird157 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References