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P4
CVE-2025-66415: reply-from through 12.4.0 (inclusive); +1 more affected products
CVE-2025-66415. CVSS 3.1 base score 5.4 (MEDIUM, NVD). EPSS 0.00179 (percentile 0.06936), scored 17-Oct-2026.
Affected technology
reply-from · through 12.4.0 (inclusive)
fastify
fastify-reply-from · < 12.5.0
fastify
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
An attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. Vendor/CNA’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality and integrity impact as low; availability impact as none.
- CWE
- CWE-441
- CCR priority
- 21.6 /100 (P4)
- CVSS 3.1
- 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N · NVD
- EPSS
- 0.00179 · percentile 0.06936 · 2026-10-17
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-18 18:49:36.049749+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2025-66415.html