Is highlight.js 10.3 vulnerable?

npm · 3 releases from 10.3.0 to 10.3.2 · latest highlight.js is 11.12.0 · checked 2 Nov 2026

Yes: 1 known advisory

Yes. highlight.js 10.3.2, the last 10.3 release, is affected by 1 known security advisory (1 medium). Upgrade to 10.4.1 or later to fix all of them.

Upgrade with:npm install highlight.js@10.4.1

Is your project affected?

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

Advisories affecting highlight.js 10.3.2

  • MediumGHSA-7wwv-vh3v-89cq4 Dec 2020

    ReDOS vulnerabities: multiple grammars

    Affected
    >=9.0.0 <10.4.1
    Fixed in
    10.4.1

Which of your client projects are still on highlight.js 10.3?

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

Scan a project free, no signupOr connect GitHub to scan every repo

Other highlight.js 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.