CVE-2025-21620

Name
CVE-2025-21620
Description
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
CONFIRM https://github.com/denoland/deno/security/advisories/GHSA-f27p-cmv8-xhm6

Match rules

CPE URI Source package Min version Max version
deno >= 0 < 2.1.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
deno edge-community 2.0.6-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
deno edge-community 2.0.6-r2 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
deno 3.22-community 2.0.6-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable