An issue was discovered in Django 5.1 before 5.1.1, 5.0 before 5.0.9, and 4.2 before 4.2.16. The urlize() and urlizetrunc() template filters are subject to a potential denial-of-service attack via very large inputs with a specific sequence of characters.
{
"versions": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.16"
},
{
"introduced": "5.0"
},
{
"fixed": "5.0.9"
},
{
"introduced": "0"
},
{
"last_affected": "5.1"
}
]
}