undici

npm

Is undici safe to use?

Based on the latest brin safety scan, no vulnerabilities or threats were detected for undici v7.21.0. Trust score: 75/100. No known CVE vulnerabilities, no detected threat patterns, and no suspicious capabilities identified. This is an automated, point-in-time assessment.

Install (safety-checked)

undici Passed Security Checks

No security concerns detected

clean
CVEs

0

Threats

0

Install Scripts

0

No Concerns Detected

No security concerns detected in the latest brin assessment. This is an automated, point-in-time evaluation — security posture may change.

This is an automated, point-in-time assessment and may contain errors. Findings are risk indicators, not confirmed threats. Security posture may change over time. Maintainers can dispute findings via the brin review process.

undici Capabilities & Permissions

What undici can access when installed. Review these capabilities before using with AI agents like Cursor, Claude Code, or Codex.

Network Access

This package makes network requests.

262.ecma-international.organdreubotella.github.iobugs.chromium.orgdatatracker.ietf.orgdeveloper.mozilla.orgdom.spec.whatwg.orgencoding.spec.whatwg.orgfetch.spec.whatwg.orggithub.comhtml.spec.whatwg.org+21 more
Protocols: http, https, tcp

Process Spawning

This package can spawn child processes.

Environment Variables

Accesses the following environment variables.

CIHTTPS_PROXYHTTP_PROXYJEST_WORKER_IDNO_PROXYUNDICI_NO_WASM_SIMDhttp_proxyhttps_proxyno_proxy

AGENTS.md for undici

Good instructions lead to good results. brin adds undici documentation to your AGENTS.md so your agent knows how to use it properly—improving both safety and performance.

brin init

Vercel's research: 100% accuracy with AGENTS.md vs 53% without →

undici Documentation & Source Code

For the full undici README, API documentation, and source code, visit the official package registry.

Frequently asked questions about undici safety

Weekly Downloads

42.9M

Version

7.21.0

License

MIT

Last Scanned

Feb 6, 2026

Trust Score

75/100·Legitimacy signals, not safety

Capabilities

Network

Connects to: 262.ecma-international.org, andreubotella.github.io, bugs.chromium.org...

Process

Spawns child processes

Environment

Accesses: CI, HTTPS_PROXY, HTTP_PROXY...