bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(…, attributes={‘a’: [‘style’]}).
[
{
"vendor": "Mozilla",
"product": "Mozilla Bleach",
"versions": [
{
"version": "unspecified",
"lessThan": "3.1.4",
"status": "affected",
"versionType": "custom"
}
]
}
]