PDF.js: Arbitrary JavaScript execution upon opening a malicious PDF
High-risk advisory
CVE-2026-16633
Summary
PDF.js: Arbitrary JavaScript execution upon opening a malicious PDF
Why it matters
GitHub has published a reviewed security advisory for pdfjs-dist. Prioritize it with other application dependency updates.
Operator check
Check whether pdfjs-dist is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.6.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.