title: Default swagger-ui configuration exposes all files in the module
description: fastify-swagger-ui is a Fastify plugin for serving Swagger UI.  Prior to 2.1.0, the default configuration of `@fastify/swagger-ui` without `baseDir` set will lead to all files in the module's directory being exposed via http routes served by the module.  The vulnerability is fixed in v2.1.0. Setting the `baseDir` option can also work around this vulnerability.
problem types: CWE-1188: Insecure Default Initialization of Resource
affected:
{
vendor: fastify
product: fastify-swagger-ui
versions:
version: < 2.1.0, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]