| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 107.0 | 107.0 |
| firefox esr | < 102.5 | 102.5 |
| thunderbird | < 102.5 | 102.5 |
Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
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