CVE-2021-21322

Prefix escape

State
Published
Severity
10.0 Critical
Published
Mar 2, 2021
Updated
Aug 3, 2024
Reserved
Dec 22, 2020

Read the record on cve.org

Description

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 of the proxied server is `/pub/`, a user expect that accessing `/priv` on the target service would not be possible. In affected versions, it is possible. This is fixed in version 4.3.1.

Scores

CVSSScoreVectorSource
3.110.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:NGitHub_M

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
fastify-http-proxyfastify
  • < 4.3.1Affected

References

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