When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
CPE | Name | Operator | Version |
---|---|---|---|
firefox | lt | 97.0 | |
firefox_esr | lt | 91.6 | |
thunderbird | lt | 91.6 |