CVE-2019-2393

Name: CVE-2019-2393
Creator: NVD / NIST
Published: 2020-11-23T16:15:13.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2019-2393 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which use $lookup and collations. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13 and MongoDB Server v3.6 versions prior to 3.6.15.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which use $lookup and collations. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13 and MongoDB Server v3.6 versions prior to 3.6.15.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mongodb	Mongodb	>= 3.6.0, < 3.6.15
Mongodb	Mongodb	>= 4.0.0, < 4.0.13
Mongodb	Mongodb	>= 4.2.0, < 4.2.1

References

https://jira.mongodb.org/browse/SERVER-43350Issue Tracking, Vendor Advisory
https://jira.mongodb.org/browse/SERVER-43350Issue Tracking, Vendor Advisory

Timeline

Published: Nov 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-2393?

How severe is CVE-2019-2393?

CVE-2019-2393 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2019-2393?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-2393?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST