Vulnerability Description
fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. This vulnerability is fixed in 12.5.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fastify | Reply-From | <= 12.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/fastify/fastify-reply-from/commit/4d9795cd5b57a36756d37b7f036Patch
- https://github.com/fastify/fastify-reply-from/security/advisories/GHSA-2q7r-29rgVendor Advisory
FAQ
What is CVE-2025-66415?
CVE-2025-66415 is a vulnerability with a CVSS score of 5.4 (MEDIUM). fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even t...
How severe is CVE-2025-66415?
CVE-2025-66415 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66415?
Check the references section above for vendor advisories and patch information. Affected products include: Fastify Reply-From.