npm vulnerability intelligence

yaml NPM Package
Vulnerability Check

JavaScript parser and stringifier for YAML

High severity ISC v2.9.0
Vulnerability Analysis OSV Live

yaml

v2.9.0 · ISC · 162,924,223 dl/wk

Advisory Breakdown

Critical 0
High 1
Moderate 1
Low 0

Severity Rating

High severity

2 advisories

High severity

Weekly downloads

162,924,223

Total advisories

2

Latest version

2.9.0

License

ISC

Advisories Package Info Runtime

Known advisories

OSV records for the npm ecosystem

2
GHSA-48c2-rrv3-qjmp CVE-2026-33532 moderate

yaml is vulnerable to Stack Overflow via deeply nested YAML collections

Affected: >=2.0.0 <2.8.3, >=1.0.0 <1.10.3 Fixed in: 2.8.3, 1.10.3 Updated Mar 27, 2026
View source
GHSA-f9xv-q969-pqx4 CVE-2023-2251 high

Uncaught Exception in yaml

Affected: >=2.0.0-5 <2.2.2 Fixed in: 2.2.2 Updated Nov 8, 2023
View source

Checked Jun 14, 2026, 11:21 PM from npm and OSV.dev

Package metadata

From the npm registry

Package name
yaml
Ecosystem
npm
Latest version
2.9.0
License
ISC
Weekly downloads
162,924,223
Repository
Open repository

Remediation boundary

What RequestGuard does — and doesn't — cover

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Data from npm registry and OSV.dev · Checked 6/14/2026, 11:21:24 PM