orval-labs Orval up to 8.20.x Zod Schema Generation index.ts formatDefaultValue code injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in orval-labs Orval up to 8.20.x. Affected by this vulnerability is the function formatDefaultValue of the file packages/zod/src/index.ts of the component Zod Schema Generation. Performing a manipulation results in code injection. This vulnerability is identified as CVE-2026-72716. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in orval-labs Orval up to 8.20.x. It has been classified as critical. This affects the function formatDefaultValue of the file packages/zod/src/index.ts of the component Zod Schema Generation. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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 query parameter 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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-72716 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

Upgrading to version 8.21.0 eliminates this vulnerability.

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Productinfo

Vendor

• orval-labs

Name

• Orval

Version

• 8.0
• 8.1
• 8.2
• 8.3
• 8.4
• 8.5
• 8.6
• 8.7
• 8.8
• 8.9
• 8.10
• 8.11
• 8.12
• 8.13
• 8.14
• 8.15
• 8.16
• 8.17
• 8.18
• 8.19
• 8.20

Website

• Product: https://github.com/orval-labs/orval/

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