What is CVE-2020-7926?

CVE-2020-7926 is a vulnerability in MongoDB Server version 4.4 prior to 4.4.1 that allows a user authorized to perform database queries to cause denial of service by issuing a specially crafted query.

How does CVE-2020-7926 affect MongoDB Server?

CVE-2020-7926 affects MongoDB Server version 4.4 prior to 4.4.1.

What is the severity rating of CVE-2020-7926?

The severity rating of CVE-2020-7926 is medium with a CVSS score of 6.5.

How can this vulnerability be exploited?

This vulnerability can be exploited by a user authorized to perform database queries who issues a specially crafted query that violates an invariant in the server selection subsystem.

Is MongoDB Server version 4.4.1 affected by CVE-2020-7926?

No, MongoDB Server version 4.4.1 is not affected by CVE-2020-7926. Versions before 4.4 are also not affected.

Vulnerability/
CVE-2020-7926

medium

6.5

CWE

755

23/11/2020

30/11/2020

23/1/2024

CVE-2020-7926: Specific query can cause a DoS against MongoDB Server

First published: Mon Nov 23 2020(Updated: )

A user authorized to perform database queries may cause denial of service by issuing a specially crafted query which violates an invariant in the server selection subsystem. This issue affects MongoDB Server v4.4 versions prior to 4.4.1. Versions before 4.4 are not affected.

Credit: cna@mongodb.com cna@mongodb.com

Affected Software	Affected Version	How to fix
MongoDB MongoDB	>=4.4.0<4.4.1

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Reference Links

https://jira.mongodb.org/browse/SERVER-50170

Frequently Asked Questions

What is CVE-2020-7926?
CVE-2020-7926 is a vulnerability in MongoDB Server version 4.4 prior to 4.4.1 that allows a user authorized to perform database queries to cause denial of service by issuing a specially crafted query.
How does CVE-2020-7926 affect MongoDB Server?
CVE-2020-7926 affects MongoDB Server version 4.4 prior to 4.4.1.
What is the severity rating of CVE-2020-7926?
The severity rating of CVE-2020-7926 is medium with a CVSS score of 6.5.
How can this vulnerability be exploited?
This vulnerability can be exploited by a user authorized to perform database queries who issues a specially crafted query that violates an invariant in the server selection subsystem.
Is MongoDB Server version 4.4.1 affected by CVE-2020-7926?
No, MongoDB Server version 4.4.1 is not affected by CVE-2020-7926. Versions before 4.4 are also not affected.

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