npm vulnerability intelligence

y18n NPM Package
Vulnerability Check

the bare-bones internationalization library used by yargs

High severity ISC v5.0.8
Vulnerability Analysis OSV Live

y18n

v5.0.8 · ISC · 143,018,990 dl/wk

Advisory Breakdown

Critical 0
High 1
Moderate 0
Low 0

Severity Rating

High severity

1 advisory

High severity

Weekly downloads

143,018,990

Total advisories

1

Latest version

5.0.8

License

ISC

Advisories Package Info Runtime

Known advisories

OSV records for the npm ecosystem

1
GHSA-c4w7-xm78-47vh CVE-2020-7774 high

Prototype Pollution in y18n

Affected: >=0 <3.2.2, >=4.0.0 <4.0.1, >=5.0.0 <5.0.5 Fixed in: 3.2.2, 4.0.1, 5.0.5 Updated Dec 5, 2024
View source

Checked Jun 7, 2026, 5:40 PM from npm and OSV.dev

Package metadata

From the npm registry

Package name
y18n
Ecosystem
npm
Latest version
5.0.8
License
ISC
Weekly downloads
143,018,990
Repository
Open repository

Remediation boundary

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Data from npm registry and OSV.dev · Checked 6/7/2026, 5:40:04 PM