CVE & CISA-KEV Catalog

CVE-2025-66415

MEDIUM
5.4
CVSS v3
NVD

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.

CWE-441

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploit Intelligence

0.15%probability of exploitation in 30 days
5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Vendor Advisory1
Embed a live status badge for CVE-2025-66415
CVE-2025-66415 severity badge

Markdown

[![CVE-2025-66415](https://tridentstack.com/cve/badge/CVE-2025-66415.svg)](https://tridentstack.com/cve/CVE-2025-66415)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-66415"><img src="https://tridentstack.com/cve/badge/CVE-2025-66415.svg" alt="CVE-2025-66415"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-06.