CVE-2021-44906

CRITICAL

Substack Minimist < 1.2.6 - Prototype Pollution

Title source: rule

Description

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

Exploits (1)

nomisec WORKING POC

by nevermoe · poc

https://github.com/nevermoe/CVE-2021-44906

View Code ZIP pw:eip

References (6)

[Exploit, 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, Issue Tracking, Patch, Third Party Advisory] https://github.com/substack/minimist/issues/164

[Exploit, Not Applicable, Patch, Third Party Advisory] https://snyk.io/vuln/SNYK-JS-MINIMIST-559764

[Issue Tracking, Third Party Advisory] https://stackoverflow.com/questions/8588563/adding-custom-properties-to-a-function/20278068#20278068

[Vendor Advisory] https://security.netapp.com/advisory/ntap-20240621-0006/

Scores

CVSS v3 9.8

EPSS 0.0088

EPSS Percentile 75.5%

Attack Vector NETWORK

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

Details

CWE

CWE-1321

Status published

Products (2)

npm/minimist 1.0.0 - 1.2.6npm

substack/minimist < 1.2.6

Published Mar 17, 2022

Tracked Since Feb 18, 2026