vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2019-2393

Crash while joining collections with $lookup

MEDIUM
6.5
CVSS Score
Published: November 23, 2020 at 03:30 PM UTC
Updated: June 17, 2026 at 02:33 AM UTC
1 product affected across 1 vendorMongoDB

Using MongoDB Server by MongoDB Inc.?

Get instant alerts when new vulnerabilities affect MongoDB Server - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MongoDB· MongoDB
95%
3.6 ≤ v < 3.6.153.6.0 ≤ v < 3.6.154.0 ≤ v < 4.0.134.0.0 ≤ v < 4.0.134.2 ≤ v < 4.2.14.2.0 ≤ v < 4.2.13.64.04.2
Affected range stops below 3.6.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMIssue TrackingVendor Advisory
Source: [email protected]
https://jira.mongodb.org/browse/SERVER-43350

CVSS

6.5MEDIUMmongodb
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card