CVE-2025-21620

Fixed upstream EPSS <1%CVSS 7.5

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch() redirect handling creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain. This vulnerability is fixed in 2.1.2.

Published 2025-01-06 · CVE record · OSV

Products: denoland deno

Fixed upstream