CVE-2026-82054: Uncontrolled Resource Consumption in MongoDB Server JSON Pointer Parser Leads to Denial of Service
A security issue exists in MongoDB server's JSON Pointer parser used during $jsonSchema query filter processing. When a find command includes a specially crafted $jsonSchema filter field, the parser processes the input without enforcing adequate limits on iteration count or total allocation size, resulting in significant memory amplification. Under concurrent request load, the cumulative memory consumption can exhaust available heap memory, causing the server's out-of-memory handler to terminate the mongod process and deny service to all connected clients.
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need to trigger this issue?
An attacker needs network access and low-level privileges. No user interaction is required.
Which request path processes the malicious input?
The input is processed when a find command includes a specially crafted $jsonSchema filter field.
What is the expected security impact?
The impact is denial of service: concurrent requests can exhaust heap memory and cause the mongod process to terminate. The provided vector indicates no confidentiality or integrity impact.