CVE-2026-82055 PUBLISHED

Null Pointer Dereference in MongoDB Server 2dsphere Index Key Generation Leads to Denial of Service

Assigner: mongodb
Reserved: 27.08.2026 Published: 08.09.2026 Updated: 08.09.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.1

Product Status

Vendor MongoDB
Product MongoDB Server
Versions Default: unaffected
  • affected from 8.3.0 to 8.3.9 (excl.)

References

Problem Types

  • CWE-476: NULL Pointer Dereference CWE