CVE-2021-21321
- Source
- https://cve.org/CVERecord?id=CVE-2021-21321
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21321.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-21321
- Aliases
- Related
- Published
- 2021-03-02T04:15:12.487Z
- Modified
- 2026-04-12T01:01:14.096938Z
- Severity
-
- 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 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 4.0.2.
- References
Affected packages
Git / github.com/fastify/fastify-reply-from
Affected ranges
- Type
- GIT
- Repo
- https://github.com/fastify/fastify-reply-from
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
{ "cpe": "cpe:2.3:a:fastify-reply-from_project:fastify-reply-from:*:*:*:*:*:node.js:*:*", "source": [ "CPE_FIELD", "REFERENCES" ], "extracted_events": [ { "introduced": "0" }, { "fixed": "4.0.2" } ] }