esbuild

npm

Is esbuild safe to use?

The latest brin safety scan flagged esbuild v0.27.2 with risk indicators that warrant review. No known CVE vulnerabilities. Trust score: 65/100. Review the findings below before use. This is an automated assessment and may contain errors.

Install (safety-checked)

esbuild Has Warnings

Warnings detected due to potential concerns

warning
CVEs

0

Threats

0

Install Scripts

0

Risk Indicators

  • Can spawn child processes

brin Recommendations

  • This package has warnings detected. Evaluate the specific concerns before proceeding.

Install with brin add esbuild to automatically apply these checks before installation.

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.

esbuild Capabilities & Permissions

What esbuild 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.

esbuild.github.iogithub.comnodejs.orgregistry.npmjs.orgsnapcraft.iostackoverflow.comyarnpkg.com
Protocols: https

Filesystem Access

Writes to the filesystem.

/usr/ (r).env (r)node_modules (r)package.json (r)/usr/ (w).env (w)node_modules (w)package.json (w)

Process Spawning

This package can spawn child processes.

Environment Variables

Accesses the following environment variables.

ESBUILD_BINARY_PATHESBUILD_MAX_BUFFERESBUILD_WORKER_THREADS

AGENTS.md for esbuild

Good instructions lead to good results. brin adds esbuild 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 →

esbuild Documentation & Source Code

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

Frequently asked questions about esbuild safety

Weekly Downloads

101.1M

Version

0.27.2

License

MIT

Other Versions

Last Scanned

Jan 31, 2026

Trust Score

65/100·Legitimacy signals, not safety

Capabilities

Network

Connects to: esbuild.github.io, github.com, nodejs.org...

Filesystem

Writes files

Process

Spawns child processes

Environment

Accesses: ESBUILD_BINARY_PATH, ESBUILD_MAX_BUFFER, ESBUILD_WORKER_THREADS