CVE-2026-82055: CWE-476: NULL Pointer Dereference in MongoDB MongoDB Server
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.
AI Analysis
Technical Summary
This vulnerability arises from an inconsistency in geometry parsing when inserting a specially crafted GeoJSON document into a collection with a 2dsphere index in MongoDB Server 8.3.0. The internal object becomes partially initialized and invalid, and subsequent index key generation attempts to access this object, causing a null pointer dereference that terminates the mongod process. Exploitation requires authenticated write access, and the impact is a denial of service due to server crash.
Potential Impact
An authenticated user with write privileges can cause the MongoDB server process to crash, resulting in a denial of service. There is no indication of data corruption or unauthorized data access from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is provided in the available data. Until a patch is available, restrict write access to trusted users and monitor for unusual GeoJSON document insertions.
CVE-2026-82055: CWE-476: NULL Pointer Dereference in MongoDB MongoDB Server
Description
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.
CVSS v4.0
Score 7.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from an inconsistency in geometry parsing when inserting a specially crafted GeoJSON document into a collection with a 2dsphere index in MongoDB Server 8.3.0. The internal object becomes partially initialized and invalid, and subsequent index key generation attempts to access this object, causing a null pointer dereference that terminates the mongod process. Exploitation requires authenticated write access, and the impact is a denial of service due to server crash.
Potential Impact
An authenticated user with write privileges can cause the MongoDB server process to crash, resulting in a denial of service. There is no indication of data corruption or unauthorized data access from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is provided in the available data. Until a patch is available, restrict write access to trusted users and monitor for unusual GeoJSON document insertions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-27T22:50:59.592Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa03a25acd9273b49ec3629
Added to database: 09/08/2026, 16:39:01 UTC
Last enriched: 09/08/2026, 16:53:35 UTC
Last updated: 09/09/2026, 02:23:15 UTC
Views: 8
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