An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.
Exploitability
AV:NAC:LAT:NPR:LUI:NVulnerable System
VC:NVI:NVA:LSubsequent System
SC:NSI:NSA:N5.3/CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NOther