Vulnerability Description
orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/orval-labs/orval
- https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L58
- https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718
- https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2
- https://github.com/orval-labs/orval/pull/4007
- https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p
- https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9j
- https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unes
- https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p
FAQ
What is CVE-2026-96757?
CVE-2026-96757 is a vulnerability with a CVSS score of 9.8 (CRITICAL). orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-...
How severe is CVE-2026-96757?
CVE-2026-96757 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-2026-96757?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.