CVE-2026-25141
CRITICAL
GHSA-gch2-phqh-fg9q
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Tags
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.
Analysis
Code injection in Orval TypeScript API client generator versions 7.19.0 to before 7.22.0. Generated client code may be vulnerable to injection through crafted OpenAPI specifications.
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 24 hours: Identify all projects using Orval and determine which versions are deployed in development, staging, and production environments. Within 7 days: Implement code review requirements for all OpenAPI specification sources and consider restricting specification uploads to trusted sources only. …
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today