CVE-2026-27190: Deno

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

Affected products

• Deno Deno: before 2.6.8 (fixed in 2.6.8)

Published 2026-02-20. Last modified 2026-06-17.