Improper Input Validation Affecting fastify-reply-from package, versions <4.0.2
Threat Intelligence
EPSS
0.32% (71st
percentile)
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Test your applications- Snyk ID SNYK-JS-FASTIFYREPLYFROM-1080744
- published 2 Mar 2021
- disclosed 2 Mar 2021
- credit Unknown
Introduced: 2 Mar 2021
CVE-2021-21321 Open this link in a new tabHow to fix?
Upgrade fastify-reply-from to version 4.0.2 or higher.
Overview
fastify-reply-from is a forward your HTTP request to another server, for fastify
Affected versions of this package are vulnerable to Improper Input Validation. It is possible to escape the prefix of the proxied backend service by a specially crafted URL. For instance, where the base url of the proxied server is /pub/, a user could gain access to /priv on the target service.
References
CVSS Scores
version 3.1