A malicious website could have learned the size of a cross-origin resource that supported Range requests. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
CPE | Name | Operator | Version |
---|---|---|---|
firefox | lt | 101 | |
firefox_esr | lt | 91.10 | |
thunderbird | lt | 91.10 |