A path handling issue was addressed with improved validation. This issue is fixed in Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. Processing a maliciously crafted URL may cause unexpected JavaScript execution from a file on disk.
[
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "11.6",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "2021",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]