Vulnerability Description
Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Orval | Orval | >= 7.19.0, < 7.21.0 |
Related Weaknesses (CWE)
References
- https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7Product
- https://github.com/orval-labs/orval/releases/tag/v7.21.0ProductRelease Notes
- https://github.com/orval-labs/orval/releases/tag/v8.2.0ProductRelease Notes
- https://github.com/orval-labs/orval/security/advisories/GHSA-gch2-phqh-fg9qVendor Advisory
- https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jvVendor Advisory
FAQ
What is CVE-2026-25141?
CVE-2026-25141 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026...
How severe is CVE-2026-25141?
CVE-2026-25141 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-25141?
Check the references section above for vendor advisories and patch information. Affected products include: Orval Orval.