CVE-2026-82055

HIGH CVSS 4.0: 7.1 EPSS 0.40%
Updated Sep 16, 2026
MongoDB
Parameter Value
CVSS 7.1 (HIGH)
Affected Versions 8.3.0 — 8.3.9
Fixed In 8.3.9
Type CWE-476 (NULL Pointer Dereference)
Vendor MongoDB
Public PoC No

A security issue exists in MongoDB's 2dsphere index key generation that can cause a server crash due to a null pointer dereference. When a specially crafted GeoJSON document is inserted into a collection with a 2dsphere index, an inconsistency in geometry parsing can leave an internal object in an invalid, partially initialized state. During subsequent index key generation, access to this improperly initialized object results in a null pointer dereference that terminates the mongod process.

An authenticated user with write access can use this to cause a denial of service.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Mongodb Mongodb
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
8.3.0 8.3.9