npm vulnerability intelligence

semver NPM Package
Vulnerability Check

The semantic version parser used by npm.

High severity ISC v7.8.1
Vulnerability Analysis OSV Live

semver

v7.8.1 · ISC · 728,079,761 dl/wk

Advisory Breakdown

Critical 0
High 2
Moderate 0
Low 0

Severity Rating

High severity

2 advisories

High severity

Weekly downloads

728,079,761

Total advisories

2

Latest version

7.8.1

License

ISC

Advisories Package Info Runtime

Known advisories

OSV records for the npm ecosystem

2
GHSA-c2qf-rxjj-qqgw CVE-2022-25883 high

semver vulnerable to Regular Expression Denial of Service

Affected: >=7.0.0 <7.5.2, >=6.0.0 <6.3.1, >=2.0.0-alpha <5.7.2 Fixed in: 7.5.2, 6.3.1, 5.7.2 Updated Feb 4, 2026
View source
GHSA-x6fg-f45m-jf5q CVE-2015-8855 high

Regular Expression Denial of Service in semver

Affected: >=1.0.4 <4.3.2 Fixed in: 4.3.2 Updated Mar 4, 2026
View source

Checked May 22, 2026, 7:03 PM from npm and OSV.dev

Package metadata

From the npm registry

Package name
semver
Ecosystem
npm
Latest version
7.8.1
License
ISC
Weekly downloads
728,079,761
Repository
Open repository

Remediation boundary

What RequestGuard does — and doesn't — cover

RequestGuard does not fix npm package vulnerabilities. Dependency remediation happens through package updates, patches, lockfile changes, and maintainer guidance. RequestGuard can help mitigate runtime abuse around exposed web and API flows while remediation is handled separately.

Signup flows
Login attempts
API traffic

Protect runtime flows →

Allow, challenge, review, and block decisions for exposed endpoints.

Data from npm registry and OSV.dev · Checked 5/22/2026, 7:03:48 PM