CVE-2026-71868

Orval: Import-time RCE via enum-typed default -> zod module-level template literal

Published Aug 19, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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 an enum 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3575-w9fc-c2j6 Orval: Import-time RCE via enum-typed default -> zod module-level template literal
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Orval-labs
Orval-labs orval
Vendors & Products Orval-labs
Orval-labs orval
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 an enum 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 enum-typed default -> zod module-level template literal
Weaknesses 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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 21, 2026, 7:43 PM
Reserved
Aug 7, 2026, 6:26 PM
Status
Deferred
Published
Aug 19, 2026, 6:17 PM
Modified
Sep 9, 2026, 9:20 PM