Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions 7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification.
    Versions 7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject
    arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties.
    These const values are interpolated into the mock scalar generator (getMockScalar in
    packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which
    results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers.
    The vulnerability is similar in impact to the previously reported enum x-enumDescriptions
    (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than
    @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3. (CVE-2026-24132)

ID	Name	Product	Family	Severity
436899	SCA: security update for @orval/mock (GHSA-f456-rf33-4626)	Tenable Cloud Security	SCA Checks	high
436899	SCA: security update for @orval/mock (GHSA-f456-rf33-4626)	Tenable Self-Hosted Container Security	SCA Checks	high

Detections

Analytics

CVE-2026-24132

high

Tenable Plugins

high

high