9.8
CRITICAL CVSS 3.1
CVE-2021-44906
Minimist Prototype Pollution Vulnerability
Description

Minimist <=1.2.5 is vulnerable to Prototype Pollution via file index.js, function setKey() (lines 69-95).

INFO

Published Date :

March 17, 2022, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 6:31 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2021-44906 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Substack minimist
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
This vulnerability can be mitigated by updating the affected packages or upgrading the product.
  • Update affected packages to the latest versions.
  • If applicable, upgrade to the latest product version.
Public PoC/Exploit Available at Github

CVE-2021-44906 has a 61 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-44906.

URL Resource
https://github.com/Marynk/JavaScript-vulnerability-detection/blob/main/minimist%20PoC.zip Exploit Third Party Advisory
https://github.com/substack/minimist/blob/master/index.js#L69 Exploit Third Party Advisory
https://github.com/substack/minimist/issues/164 Exploit Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0006/
https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 Exploit Not Applicable Patch Third Party Advisory
https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068 Issue Tracking Third Party Advisory
https://github.com/Marynk/JavaScript-vulnerability-detection/blob/main/minimist%20PoC.zip Exploit Third Party Advisory
https://github.com/substack/minimist/blob/master/index.js#L69 Exploit Third Party Advisory
https://github.com/substack/minimist/issues/164 Exploit Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0006/
https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 Exploit Not Applicable Patch Third Party Advisory
https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068 Issue Tracking Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-44906 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Dependency scanner: offline CVE database (47 entries incl. supply-chain), unused/missing deps via static import analysis, transitive via lockfile, Python support. Free forever from vøiddo.

JavaScript

Updated: 1 day, 6 hours ago
0 stars 0 fork 0 watcher
Born at : April 22, 2026, 8:03 p.m. This repo has been linked 2 different CVEs too.

Solution for ClawHunt problem #122: Add automated security scanning for OpenClaw skill packages in clawsec-suite

Python Shell JavaScript

Updated: 6 days, 15 hours ago
0 stars 0 fork 0 watcher
Born at : April 17, 2026, 11 a.m. This repo has been linked 5 different CVEs too.

Solution for ClawHunt problem #122: Automated Security Scanning for OpenClaw Skills

Python Shell JavaScript

Updated: 6 days, 16 hours ago
0 stars 0 fork 0 watcher
Born at : April 17, 2026, 10:45 a.m. This repo has been linked 5 different CVEs too.

🎯 DepShield test target repo — intentionally vulnerable dependencies for FixStack demo

JavaScript

Updated: 1 week ago
0 stars 0 fork 0 watcher
Born at : April 16, 2026, 1:14 p.m. This repo has been linked 5 different CVEs too.

Intentionally vulnerable app to trigger CodeQL, Dependabot, Secret Scanning, and other security scanning tools.

Dockerfile JavaScript HCL

Updated: 1 week, 3 days ago
0 stars 0 fork 0 watcher
Born at : April 13, 2026, 7:46 a.m. This repo has been linked 7 different CVEs too.

None

JavaScript

Updated: 1 week, 1 day ago
0 stars 0 fork 0 watcher
Born at : April 13, 2026, 5:10 a.m. This repo has been linked 11 different CVEs too.

An agentic approach to triage ACS_CVSS_CRITICAL JIRA tickets

Python

Updated: 2 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : April 6, 2026, 2:21 p.m. This repo has been linked 20 different CVEs too.

A Node.js application integrated with OWASP Dependency-Track for automated SCA, vulnerability management, tracking and reporting

JavaScript Dockerfile HCL

Updated: 6 days, 5 hours ago
0 stars 0 fork 0 watcher
Born at : April 3, 2026, 6:46 p.m. This repo has been linked 6 different CVEs too.

None

Dockerfile TypeScript HCL Shell Python

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : April 3, 2026, 1:04 p.m. This repo has been linked 16 different CVEs too.

None

JavaScript TypeScript

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : April 3, 2026, 9:44 a.m. This repo has been linked 2 different CVEs too.

Secure, zero-dependency minimist replacement with prototype pollution protection, Unicode smuggling defense, NFKC normalization, deterministic alias groups, and a sandboxed unknown hook. Drop-in compatible.

JavaScript

Updated: 3 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : March 27, 2026, 8:56 p.m. This repo has been linked 1 different CVEs too.

None

JavaScript

Updated: 4 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : March 25, 2026, 7:41 a.m. This repo has been linked 7 different CVEs too.

Zero-config security scanning for vibe coders. Claude Code plugin bundling gitleaks, checkov, trivy, and zizmor as pre-commit hooks.

Shell JavaScript

Updated: 4 weeks ago
0 stars 0 fork 0 watcher
Born at : March 23, 2026, 3:53 p.m. This repo has been linked 2 different CVEs too.

None

Updated: 3 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : March 23, 2026, 10:39 a.m. This repo has been linked 7 different CVEs too.

A fully local, private AI agent for querying and managing your Checkmarx One security data. Built with Ollama, LangChain, and MCP (Model Context Protocol). No data leaves your machine.

Python

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : March 6, 2026, 11:45 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-44906 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-44906 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/Marynk/JavaScript-vulnerability-detection/blob/main/minimist%20PoC.zip
    Added Reference https://github.com/substack/minimist/blob/master/index.js#L69
    Added Reference https://github.com/substack/minimist/issues/164
    Added Reference https://security.netapp.com/advisory/ntap-20240621-0006/
    Added Reference https://snyk.io/vuln/SNYK-JS-MINIMIST-559764
    Added Reference https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068
  • CVE Modified by [email protected]

    Jun. 21, 2024

    Action Type Old Value New Value
    Added Reference MITRE https://security.netapp.com/advisory/ntap-20240621-0006/ [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Apr. 12, 2022

    Action Type Old Value New Value
    Changed Reference Type https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 Exploit, Patch, Third Party Advisory https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 Exploit, Not Applicable, Patch, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:substack:minimist:*:*:*:*:*:node.js:*:* versions up to (excluding) 0.2.1 *cpe:2.3:a:substack:minimist:*:*:*:*:*:node.js:*:* versions from (including) 1.0.0 up to (excluding) 1.2.3 OR *cpe:2.3:a:substack:minimist:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.2.6
  • Initial Analysis by [email protected]

    Mar. 23, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/Marynk/JavaScript-vulnerability-detection/blob/main/minimist%20PoC.zip No Types Assigned https://github.com/Marynk/JavaScript-vulnerability-detection/blob/main/minimist%20PoC.zip Exploit, Third Party Advisory
    Changed Reference Type https://github.com/substack/minimist/blob/master/index.js#L69 No Types Assigned https://github.com/substack/minimist/blob/master/index.js#L69 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/substack/minimist/issues/164 No Types Assigned https://github.com/substack/minimist/issues/164 Exploit, Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 No Types Assigned https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 Exploit, Patch, Third Party Advisory
    Changed Reference Type https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068 No Types Assigned https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068 Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-1321
    Added CPE Configuration OR *cpe:2.3:a:substack:minimist:*:*:*:*:*:node.js:*:* versions up to (excluding) 0.2.1 *cpe:2.3:a:substack:minimist:*:*:*:*:*:node.js:*:* versions from (including) 1.0.0 up to (excluding) 1.2.3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.