Is terser 5.14 vulnerable?

npm · 3 releases from 5.14.0 to 5.14.2 · latest terser is 5.51.2 · checked 2 Nov 2026

No known advisories in the last release

terser 5.14.2, the last 5.14 release, has no known advisories. 1 advisory affects earlier 5.14.x releases, so update to 5.14.2.

Update within 5.14:npm install terser@5.14.2

Is your project affected?

Private repo? Upload its lockfile instead, or connect GitHub to check every repo.

Fixed within 5.14.x, affecting earlier releases

  • HighCVE-2022-25858GHSA-4wf5-vphf-c2xc16 Jul 2022

    Terser insecure use of regular expressions leads to ReDoS

    Affected
    <4.8.1 · >=5.0.0 <5.14.2
    Fixed in
    4.8.1, 5.14.2

Which of your client projects are still on terser 5.14?

NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact terser version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.

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Other terser versions

Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the npm registry. Refreshed daily.