MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "33"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "35"
}
]
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41799.json"