| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 86.0 | 86.0 |
| firefox esr | < 78.8 | 78.8 |
| thunderbird | < 78.8 | 78.8 |
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
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