CVE-2026-71869

CVSS 9.3 (critical) · published 2026-08-19

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a ${...} expression or backtick in an array item default is emitted into a module-level template literal emitted by zod schema generation 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 function formatDefaultValue. This issue is fixed in version 8.21.0.

Weakness: CWE-94, CWE-116, CWE-1336

Source: NVD CVE-2026-71869

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-2h9g-j24r-h63g
• https://github.com/orval-labs/orval/security/advisories/GHSA-2h9g-j24r-h63g

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