| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 85.0 | 85.0 |
| firefox esr | < 78.7 | 78.7 |
| thunderbird | < 78.7 | 78.7 |
If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
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