@fastify/express v4.0.4 and earlier contains a path handling bug in the onRegister function that causes middleware paths to be doubled when inherited by child plugins. When a child plugin is registered with a prefix that matches a middlewar…
Exact source revision recorded 25 Oct 2026 08:17:24 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-33807
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-436
Original publisher date fields
published: 2026-04-15T10:16:48.310
lastModified: 2026-06-17T10:38:07.653
1 source CPE criteria · context only
- cpe:2.3:a:fastify:fastify\/express:*:*:*:*:*:node.js:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON