Improper input validation in Fastify Fastify-reply-from
CVE-2021-21321
fastify-reply-from is an npm package which is a fastify plugin to forward the current http request to another server. In fastify-reply-from before version 4.0.2, by crafting a specific URL, it is possible to escape the prefix of the proxie…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Fastify Fastify-reply-from — versions < 4.0.2
- Fastify-reply-from_project Fastify-reply-from
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Product, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-21321?
- CVE-2021-21321 is a critical-severity vulnerability in Fastify Fastify-reply-from, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2021-03-02.
- How severe is CVE-2021-21321?
- Critical severity. CVSS v3 base score is 10.0 out of 10.