CVE-2026-23947 - Orval MCP client is vulnerable to code injection via unsanitized x-enum-descript...

CVE ID : CVE-2026-23947 Published : Jan. 20, 2026, 1:15 a.m. | 1 hour, 13 minutes ago Description : Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions 7.10.0 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 8.0.2 contains a fix for the issue. Severity: 8.9 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...