CVE-2026-24132
Orval Mock Generation Code Injection via const
- State
- Published
- Severity
- 7.7 High
- Published
- Jan 22, 2026
- Updated
- Jan 23, 2026
- Reserved
- Jan 21, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.7 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products
| Product | Versions |
|---|---|
orvalorval-labs |
|
References
- https://github.com/orval-labs/orval/security/advisories/GHSA-f456-rf33-4626
- https://github.com/orval-labs/orval/pull/2828
- https://github.com/orval-labs/orval/pull/2829
- https://github.com/orval-labs/orval/pull/2830
- https://github.com/orval-labs/orval/commit/44ca8c1f5f930a3e4cefb6b79b38bcde7f8532a5
- https://github.com/orval-labs/orval/commit/6d8ece07ccb80693ad43edabccb3957aceadcd06
- https://github.com/orval-labs/orval/commit/9b211cddc9f009f8a671e4ac5c6cb72cd8646b62
- https://github.com/orval-labs/orval/releases/tag/v7.20.0
- https://github.com/orval-labs/orval/releases/tag/v8.0.3
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