RCE in Orval
CVE-2026-24132
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.001
Affected products
- Orval
- Orval-Labs Orval — versions < 7.20.0, >= 8.0.0-rc.0, < 8.0.3
Weakness classification (CWE)
References
- github.com/orval-labs/orval/security/advisories/GHSA-f456-rf33-4626 (Vendor Advisory)
- github.com/orval-labs/orval/pull/2828 (Patch, Issue Tracking)
- github.com/orval-labs/orval/pull/2829 (Patch, Issue Tracking)
- github.com/orval-labs/orval/pull/2830 (Patch, Issue Tracking)
- github.com/orval-labs/orval/commit/44ca8c1f5f930a3e4cefb6b79b38bcde7f8532a5 (Patch)
- github.com/orval-labs/orval/commit/6d8ece07ccb80693ad43edabccb3957aceadcd06 (Patch)
- github.com/orval-labs/orval/commit/9b211cddc9f009f8a671e4ac5c6cb72cd8646b62 (Patch)
- github.com/orval-labs/orval/releases/tag/v7.20.0 (Product, Release Notes)
- github.com/orval-labs/orval/releases/tag/v8.0.3 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-24132?
- CVE-2026-24132 is a critical-severity vulnerability in Orval, classified under Command Injection. CVSS score: 9.8/10. Published 2026-01-23.
- How severe is CVE-2026-24132?
- Critical severity. CVSS v3 base score is 9.8 out of 10.