CVE-2024-27931: Deno

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. Insufficient validation of parameters in `Deno.makeTemp*` APIs would allow for creation of files outside of the allowed directories. This may allow the user to overwrite important files on the system that may affect other systems. A user may provide a prefix or suffix to a `Deno.makeTemp*` API containing path traversal characters. This is fixed in Deno 1.41.1.

Affected products

• Deno Deno: before 1.41.1 (fixed in 1.41.1)

Published 2024-03-05. Last modified 2026-06-17.