Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-44906

CVE-2021-44906CRITICAL

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

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0458   91.5     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Dec 13  Reserved by mitre
  Mar 17  Published (CNA: mitre)
  Oct 8   ENRICHED — CVE-2021-44906. Received CVSS 9.8 and CPE data from NVD.
  Oct 8   EXPLOIT PUBLISHED — CVE-2021-44906. Public exploit reference added.

CWE-1321 · CNA: mitre · CVSS v3.1 · 6 references · NVD status: Modified

Description

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

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
December 13, 2021	Reserved	Reserved by mitre
March 17, 2022	Published	Published (CNA: mitre)
October 8, 2026	ENRICHED	ENRICHED — CVE-2021-44906. Received CVSS 9.8 and CPE data from NVD.
October 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2021-44906. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-1321

References (6)

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]

Authoritative record: CVE-2021-44906 at cve.org

Weaknesses: CWE-1321

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-44906 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.