CWE
755
Advisory Published
Updated

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 SoftwareAffected VersionHow to fix
MongoDB MongoDB>=4.4.0<4.4.1

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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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