Authorization Bypass

fastify-reply-from is vulnerable to authorization bypass. An attacker is able to escape the prefix of the proxied backend service and access restricted service such as the parent of the base URL...

Prefix escape

Overview In fastify-http-proxy before version 4.3.1, by crafting a specific URL, it is possible to escape the prefix of the proxied backend service. If the base url of the proxied server is /pub/, a user expect that accessing /priv on the target service would not be possible. Unfortunately, it is...

GHSA-QMW8-3V4G-GWJ4 Prefix escape

Impact By crafting a specific URL, it is possible to escape the prefix of the proxied backend service. If the base url of the proxied server is /pub/, a user expect that accessing /priv on the target service would not be possible. Unfortunately, it is. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N...

PT-2021-14419

Name of the Vulnerable Software and Affected Versions fastify-http-proxy versions prior to 4.3.1 Description The issue allows an attacker to escape the prefix of the proxied backend service by crafting a specific URL. For example, if the base URL of the proxied server is /pub/, an attacker can...