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 a schema 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.
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History

Wed, 19 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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 a schema 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.
Title Orval: Import-time RCE via schema default -> zod module-level template literal
Weaknesses CWE-116
CWE-1336
CWE-94
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-19T17:39:23.125Z

Reserved: 2026-08-10T13:48:09.545Z

Link: CVE-2026-72717

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T18:17:25.203

Modified: 2026-08-19T18:17:25.203

Link: CVE-2026-72717

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses