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Command Injection in lodash

High severity GitHub Reviewed Published May 6, 2021 to the GitHub Advisory Database • Updated Aug 12, 2025

Package

npm lodash (npm)

Affected versions

< 4.17.21

Patched versions

4.17.21
npm lodash-es (npm)
< 4.17.21
4.17.21
bundler lodash-rails (RubyGems)
< 4.17.21
4.17.21
npm lodash-template (npm)
<= 1.0.0
None
npm lodash.template (npm)
<= 4.5.0
None

Description

lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.

References

Published by the National Vulnerability Database Feb 15, 2021
Reviewed Mar 31, 2021
Published to the GitHub Advisory Database May 6, 2021
Last updated Aug 12, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(67th percentile)

Weaknesses

Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Learn more on MITRE.

Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Learn more on MITRE.

CVE ID

CVE-2021-23337

GHSA ID

GHSA-35jh-r3h4-6jhm

Source code

Credits

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