npm package

esbuild vulnerabilities by version

The latest release, 0.28.2 (Aug 8, 2026), has no known vulnerabilities. 35% of last week’s 303.5M downloads went to versions with known vulnerabilities. OSV.dev lists 2 advisories for esbuild; the newest was published on Jun 12, 2026.

npm (opens in a new tab) describes it as “An extremely fast JavaScript and CSS bundler and minifier.”

Latest release
0.28.2
Aug 8, 2026, no known vulnerabilities
Downloads last week
303.5M
All versions, from npm
Advisories on OSV.dev
2
Newest Jun 12, 2026
Licence
MIT

Most-downloaded versions last week

From npm’s per-version download counts for the last 7 days, each checked against OSV.dev. Open a version for its advisories and what to upgrade to.

VersionKnown vulnerabilitiesDownloads
0.28.2latestAug 8, 2026No known vulnerabilities63.5M
0.25.12Nov 1, 2025No known vulnerabilities52.1M
0.28.1Jun 11, 2026No known vulnerabilities47M
0.21.5Jun 9, 20241 known vulnerability, worst rated warning24.8M
0.27.7Apr 2, 20261 known vulnerability, worst rated low20.7M
0.18.20Aug 8, 20231 known vulnerability, worst rated warning19.5M
0.27.3Feb 5, 20261 known vulnerability, worst rated low10.5M
0.28.0Apr 2, 20261 known vulnerability, worst rated low7.1M

Who is still on a vulnerable esbuild

35% of last week’s 303.5M esbuild downloads went to versions with known vulnerabilities.

From npm’s per-version download counts for the last 7 days, each version checked against OSV.dev. The versions checked cover over 99% of downloads.

Release lines

The newest release of each major line, from the registry. esbuild doesn’t publish support dates we can check.

LineNewest releaseReleased
0.280.28.2Aug 8, 2026
0.270.27.7Apr 2, 2026
0.260.26.0Nov 9, 2025
0.250.25.12Nov 1, 2025
0.240.24.2Dec 20, 2024
0.230.23.1Aug 16, 2024

Newest advisories

The 2 most recently published, with the versions each one affects.

  1. LowGHSA-g7r4-m6w7-qqqr on OSV.dev (opens in a new tab)

    esbuild allows arbitrary file read when running the development server on Windows

    Affects >= 0.27.3, < 0.28.1. Published Jun 12, 2026.

  2. WarningGHSA-67mh-4wv8-2f99 on OSV.dev (opens in a new tab)

    esbuild enables any website to send any requests to the development server and read the response

    Affects < 0.25.0. Published Feb 10, 2025.

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How this page is checked

StackPrism reads every OSV.dev advisory for esbuild, merges duplicates filed under several ids, and asks OSV.dev which ones affect each version listed. Releases and their dates come from deps.dev, downloads from npm. No AI writes this page: every sentence comes from that data, refreshed every few hours.

Last checked against OSV.dev, npm and deps.dev.