GHSA-38c3-wv3c-v3xj: swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in axios http-client template

Summary swagger-typescript-api interpolates servers[0].url directly into a TypeScript string literal inside the HttpClient constructor body of the generated axios client (templates/base/http-clients/axios-http-client.ejs:71), without any escaping. A malicious URL containing a " closes the string literal and exposes the surrounding *object-literal argument* of axios.create({...}) to injection. A computed property key whose value is an IIFE executes arbitrary code every time new HttpClient() (or new Api(), which extends HttpClient) is constructed. The attacker controls the OpenAPI spec; the victim is any consumer of the generated client. Impact is arbitrary code execution with the importing process's privileges. This is the *axios* sibling of the previously reported fetch-client RCE — same upstream variable (apiConfig.baseUrl, sourced from servers[0].url), same root cause class (raw <%~ %> interpolation of unescaped spec strings), different template file and different lifecycle frame (constructor body vs class-body static field). The single most maintainable fix — sanitizing apiConfig.baseUrl once at the source in src/code-gen-process.ts:591 — closes both at once. Details createApiConfig in src/code-gen-process.ts:591 sets the templated baseUrl from the spec without sanitization: return { ... baseUrl: serverUrl, // <-- serverUrl = swaggerSchema.servers[0].url, raw ... }; The axios http-client template (templates/base/http-clients/axios-http-client.ejs:71) then interpolates that value into a TS string literal inside the HttpClient constructor body: constructor({ securityWorker, secure, format, ...axiosConfig }: ApiConfig<SecurityDataType> = {}) { this.instance = axios.create({ ...axiosConfig, baseURL: axiosConfig.baseURL || "<%~ apiConfig.baseUrl %>" }) ... } <%~ %> is Eta's raw, unescaped interpolation. The codebase's only escape function — escapeJSDocContent (src/schema-parser/schema-formatters.ts:127) — only replaces */ and is not applied to this path. The