CVE-2026-100794

Summary

Sandbox escape due to incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox140.17 <= 140.*unaffected
MozillaFirefox153.4 <= 153.*unaffected
MozillaFirefox157 <= *unaffected

Weaknesses

References