Is pdfjs-dist 5.6 vulnerable?

npm · 1 release from 5.6.205 to 5.6.205 · latest pdfjs-dist is 6.5.438 · checked 1 Nov 2026

Yes: 1 known advisory

Yes. pdfjs-dist 5.6.205, the last 5.6 release, is affected by 1 known security advisory (1 high), including CVE-2026-16633. Upgrade to 6.2.108 or later to fix all of them.

Upgrade with:npm install pdfjs-dist@6.2.108

Is your project affected?

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

Advisories affecting pdfjs-dist 5.6.205

  • HighCVE-2026-16633GHSA-hq66-cqwq-w95j6 Aug 2026

    PDF.js: Arbitrary JavaScript execution upon opening a malicious PDF

    Affected
    >=5.6.83 <6.2.108
    Fixed in
    6.2.108

Which of your client projects are still on pdfjs-dist 5.6?

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

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Other pdfjs-dist 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.