Improper input validation in Fastify Fastify-http-proxy
CVE-2021-21322
fastify-http-proxy is an npm package which is a fastify plugin for proxying your http requests to another server, with hooks. By crafting a specific URL, it is possible to escape the prefix of the proxied backend service. If the base url o…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.019 (77.4th 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-http-proxy — versions < 4.3.1
- Fastify-http-proxy_project Fastify-http-proxy
Weakness classification (CWE)
Public proof-of-concept exploits
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-2021-21322?
- CVE-2021-21322 is a critical-severity vulnerability in Fastify Fastify-http-proxy, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2021-03-02.
- How severe is CVE-2021-21322?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-21322 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.