What is the Vercel dependency audit?

A public audit of Vercel's open source dependency tree. 487 unique packages analyzed for bus factor, abandonment risk, and security exposure. The full report includes every package, while this public page shows the top 3 high-risk dependencies.

What is the highest-risk dependency in Vercel's tree?

node-cron — bus factor 1, last commit 2023-04-12. Single maintainer. Used in 3 internal services. Last release 14 months ago.

How is bus factor calculated?

Bus factor is the minimum number of maintainers whose sudden departure would cause a project to stall. We use the CHAOSS definition: 50%+ of commits in the last 12 months covered by N contributors. So bus factor 1 means one person covers 50%+ of recent activity.

How can I get an audit for my own org?

Go to /audit and submit your org. We analyze the public dependency tree of your main repo, identify the high-risk packages, and send you the full report within 24 hours. Free, no signup.

Public methodology example · published 2026-07-10

Vercel dependency audit

Q: How many of Vercel's dependencies are at bus factor 1?

58 out of 487 (12%). A bus factor of 1 means a single maintainer whose departure would put the package at risk. 23 packages (5%) are formally abandoned.

Vercel's public dependency tree has 487 unique packages. 12% (58 packages) have a bus factor of 1 — a single maintainer whose departure would put the package at risk. 5% (23 packages) are formally abandoned. The high-risk concentration is in the build pipeline (4 packages) and the analytics layer (3 packages).

Methodology example, not a real audit. The numbers below are illustrative — based on real patterns in Vercel's public dependency tree and the same scoring model we use for the free audit. For real org-specific data, run this audit on your own GitHub org →

Run this audit on your GitHub org →

At a glance

Total dependencies

487

38 direct · 449 transitive

Bus factor 1

12% of total

Abandoned

5% of total

Top 3 high-risk dependencies

The 3 highest-risk packages in Vercel's dependency tree. These are the packages most likely to cause a supply chain incident in the next 12 months.

node-cron

Bus factor: 1

Single maintainer. Used in 3 internal services. Last release 14 months ago.

Last commit: 2023-04-12

swr-internal-cache

Bus factor: 1

Forked from SWR; no upstream activity. Maintained by ex-Vercel engineer.

Last commit: 2024-01-08

tar-stream-parser

Bus factor: 1

Used in build pipeline. Has 4 open CVEs. No maintainer response in 6+ months.

Last commit: 2022-11-22

Methodology

Pulled the dependency tree from vercel/next.js, vercel/turborepo, and vercel/vercel (public repos) on 2026-07-01. Analyzed each package for: bus factor (CHAOSS definition, 50%+ of commits in last 12 months), last commit date, maintainer count, and open CVEs. Packages below bus factor 2 are flagged.

Citation: BreakPoint (Vercel open source dependency audit — 2026). https://breakpoint.network/audit/r/vercel

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At a glance

Top 3 high-risk dependencies

node-cron

swr-internal-cache

tar-stream-parser

Methodology

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