CVE-2023-39655: Perfood Couchauth

Critical severity, CVSS 9.6. EPSS: 0.5% chance of exploitation in the next 30 days.

A host header injection vulnerability exists in the NPM package @perfood/couch-auth versions <= 0.20.0. By sending a specially crafted host header in the forgot password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. This may allow an attacker to reset other users' passwords and take over their accounts.

Affected products

• Perfood Couchauth: up to and including 0.20.0

Published 2024-01-03. Last modified 2026-06-17.