StackPrism

npm package

esbuild 0.19.9 vulnerability, and the version that fixes it

esbuild 0.19.9 has 1 known vulnerability; 0.25.0 fixes it.

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

Known vulnerabilities
1
None rated high or critical
Released
Dec 10, 2023
Latest is 0.28.2
Downloads last week
68.9K
Under 1% of esbuild downloads
Licence
MIT
OpenSSF Scorecard
5/10
evanw/esbuild (opens in a new tab)
Pulls in
22 packages
Resolved by deps.dev

What to upgrade to

0.25.0 is the closest release with no known vulnerabilities.

  • 0.19.12

    Newest 0.19.x release. Released Jan 23, 2024.

    1 known vulnerability, worst rated warning

  • 0.25.0Upgrade to this

    Fixes the known vulnerability. Released Feb 8, 2025.

    No known vulnerabilities

  • 0.28.2

    Latest release. Released Aug 8, 2026.

    No known vulnerabilities

0.25.0 came out on Feb 8, 2025. A coding agent trained before then doesn’t know it exists, so it may suggest an older release. AI knowledge cutoff dates

Hand the fix to your coding agent

One task with the upgrade, the file to change and why. Paste it into Claude Code, Cursor or Codex.

Findings

Every advisory for esbuild 0.19.9

Known exploited first (CISA KEV), then by how likely they are to be exploited (FIRST EPSS), then by severity. Each id links to its OSV.dev record.

  1. 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

    Fixed in 0.25.0. Published Feb 10, 2025.

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.

Is esbuild the only one?

Paste a public GitHub repo or drop your package.json and see every vulnerable, end-of-life or deprecated dependency, with one fix task. Free, no sign-up.

Check your whole repo

How this page is checked

StackPrism asks OSV.dev which advisories affect exactly esbuild 0.19.9, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and npm. No AI writes this page: every sentence comes from that data, refreshed every few hours.

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