Threat Intelligence Database

orval before 8.29.0 fails to escape the operationId parameter when emitting it into generated TanStack Query mutator options metadata objects. Attackers can inject arbitrary JavaScript code through a crafted operationId in an OpenAPI specification that executes when generated hooks are called.

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a single quote in a schema property name is emitted into single-quoted object keys in generated MSW mock factories without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated mock factory is called by tests or an MSW handler, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/keys.ts function getKey and MSW mock generation. This issue is fixed in version 8.21.0.

CVE-2026-71865 is a critical code injection vulnerability in orval-labs' orval tool that generates type-safe JavaScript clients from OpenAPI and Swagger specifications. Versions prior to 8.21.0 improperly handle double quotes in query parameter names, embedding them unsafely into generated zod validation schemas. This flaw allows attacker-controlled JavaScript to be executed when the generated schema module is imported, leading to code execution in developer, CI, test, or application environments. The issue is fixed in version 8.21.0.