CVE-2026-82057

A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process. By specifying a custom WiredTiger storage configuration option with an incompatible value during collection creation, a user could cause a type confusion in the storage engine layer. When documents were subsequently read from the misconfigured collection, the resulting mismatch in expected data format led to corrupted memory interpretation and a server crash. The crafted collection configuration persists across restarts, requiring manual operator intervention to remediate.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jira.mongodb.org/browse/SERVER-130495	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*

History

16 Sep 2026, 20:33

Type	Values Removed	Values Added
First Time		Mongodb Mongodb mongodb
References	~~() https://jira.mongodb.org/browse/SERVER-130495 -~~	() https://jira.mongodb.org/browse/SERVER-130495 - Vendor Advisory
CPE		cpe:2.3:a:mongodb:mongodb:::::-:::*

Information

Published : 2026-09-08 17:18

Updated : 2026-09-16 20:33

NVD link : CVE-2026-82057

Mitre link : CVE-2026-82057

CVE.ORG link : CVE-2026-82057

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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