Deno

Deno is a modern JavaScript and TypeScript runtime that presents a narrowly scoped but strategically important product footprint centered on its core runtime, standard modules, and serialization components. Vulnerabilities affecting the vendor skew strongly toward critical-severity outcomes, concentrated in weakness classes including incorrect authorization, OS command injection, improper privilege management, race conditions, and improper input validation—issues characteristic of a runtime environment's need to enforce security boundaries between untrusted code and the host system. The exposure reflects structural risks inherent to Deno's design goals around sandboxing and permission controls, where flaws in enforcement can undermine the entire security model; defenders relying on Deno's isolation guarantees should track and apply its advisories promptly. Current exploitation activity, severity distribution, and exposure counts are shown alongside this summary.