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.
[
{
"vendor": "Mozilla",
"product": "Thunderbird",
"versions": [
{
"version": "unspecified",
"lessThan": "91.10",
"status": "affected",
"versionType": "custom"
}
]
},
{
"vendor": "Mozilla",
"product": "Firefox",
"versions": [
{
"version": "unspecified",
"lessThan": "101",
"status": "affected",
"versionType": "custom"
}
]
},
{
"vendor": "Mozilla",
"product": "Firefox ESR",
"versions": [
{
"version": "unspecified",
"lessThan": "91.10",
"status": "affected",
"versionType": "custom"
}
]
}
]