CVE-2026-54662: Acacode Swagger-TypeScript-API

High severity, CVSS 8.3. EPSS: 0.5% chance of exploitation in the next 30 days.

swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications. Prior to 13.12.2, src/code-gen-process.ts createApiConfig copies servers[0].url into apiConfig.baseUrl, and templates/base/http-clients/fetch-http-client.ejs interpolates apiConfig.baseUrl into the generated HttpClient baseUrl field without escaping, allowing an attacker-controlled OpenAPI spec to inject TypeScript static field code that executes when the generated fetch client module is imported. This issue is fixed in version 13.12.2.

Affected products

• Acacode Swagger-TypeScript-API: before 13.12.2 (fixed in 13.12.2)

Published 2026-07-29. Last modified 2026-07-30.