CVE-2026-71864

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a double quote in a header parameter name is emitted into the generated request-validation zod.object({...}) schema without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts and header request-validation generation. This issue is fixed in version 8.21.0.

Score

CVSS 4.0 9.3 Critical

Status

Deferred - security-advisories@github.com

Published

2026-08-19

Last modified

2026-08-25

Weaknesses

CWE-116, CWE-94, CWE-95

Affected products

• Orval (Orval-labs)

References

• https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6
• https://github.com/orval-labs/orval/pull/3692
• https://github.com/orval-labs/orval/releases/tag/v8.21.0
• https://github.com/orval-labs/orval/security/advisories/GHSA-6437-gxhq-pqv8