CVE-2026-23947

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions prior to 7.19.0 until 8.0.2 are vulnerable to arbitrary code execution in environments consuming generated clients. This issue is similar in nature to CVE-2026-22785, but affects a different code path in @orval/core that was not addressed by CVE-2026-22785's fix. The vulnerability allows untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript code into generated clients via the x-enumDescriptions field, which is embedded without proper escaping in getEnumImplementation(). I have confirmed that the injection occurs during const enum generation and results in executable code within the generated schema files. Orval 7.19.0 and 8.0.2 contain a fix for the issue.

CVSS

No CVSS.

References

Link	Resource
https://github.com/orval-labs/orval/releases/tag/v8.0.2
https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jv

Configurations

No configuration.

History

No history.

Information

Published : 2026-01-20 01:15

Updated : 2026-01-26 15:05

NVD link : CVE-2026-23947

Mitre link : CVE-2026-23947

CVE.ORG link : CVE-2026-23947

JSON object : View

Products Affected

No product.

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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