A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.
{
"cpes": [
"cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*"
],
"severity": "High"
}