npm vulnerability intelligence

http-cache-semantics NPM Package
Vulnerability Check

Parses Cache-Control and other headers. Helps building correct HTTP caches and proxies

High severity BSD-2-Clause v4.2.0
Vulnerability Analysis OSV Live

http-cache-semantics

v4.2.0 · BSD-2-Clause · 65,324,831 dl/wk

Advisory Breakdown

Critical 0
High 1
Moderate 0
Low 0

Severity Rating

High severity

1 advisory

High severity

Weekly downloads

65,324,831

Total advisories

1

Latest version

4.2.0

License

BSD-2-Clause

Known advisories

OSV records for the npm ecosystem

1
GHSA-rc47-6667-2j5j CVE-2022-25881 high

http-cache-semantics vulnerable to Regular Expression Denial of Service

Affected: >=0 <4.1.1 Fixed in: 4.1.1 Updated Feb 4, 2026
View source

Checked Jun 7, 2026, 4:42 PM from npm and OSV.dev

Package metadata

From the npm registry

Package name
http-cache-semantics
Ecosystem
npm
Latest version
4.2.0
License
BSD-2-Clause
Weekly downloads
65,324,831

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

Data from npm registry and OSV.dev · Checked 6/7/2026, 4:42:22 PM