CVE-2021-23732Public exploitNetwork attack vector

Host command execution via unsanitized command parameter

Published Nov 22, 2021 · Updated Sep 17, 2024

OS command injection in all versions of Quobject docker-cli-js allows remote attackers to execute arbitrary host commands via Docker.command input. The method appends its command parameter to a Docker CLI command string and executes the result through child_process.exec without sanitization. Exploitation requires a consuming application to pass attacker-controlled text into that parameter; injected shell metacharacters then run commands with the host process's privileges.

CVSS severity9.0
Critical
EPSS probability1.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in all versions of Quobject docker-cli-js allows remote attackers to execute arbitrary host commands via Docker.command input. The method appends its command parameter to a Docker CLI command string and executes the result through child_process.exec without sanitization. Exploitation requires a consuming application to pass attacker-controlled text into that parameter; injected shell metacharacters then run commands with the host process's privileges.

The record

CVE
CVE-2021-23732
Published
Nov 22, 2021
Updated
Sep 17, 2024
Vendor
Quobject
Product
docker-cli-js
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Quobject · docker-cli-jsversion=0 <unspecified

Published CVSS scores

9.0SnykCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
9.3NIST NVDAV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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