EUVD Vulnerability Catalog

EUVD-2026-62605

Severity: CRITICAL Base Score: 9.3 CVSS Version: 4.0

Vulnerability 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.

CVSS Vector Analysis

Below is the complete, human-readable breakdown of the CVSS metric string: 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

▪ Attack Vector (AV): Network

▪ Attack Complexity (AC): Low

▪ Attack Requirements (AT): None

▪ Privileges Required (PR): None

▪ User Interaction (UI): None

▪ Vulnerability Confidentiality Impact (VC): High

▪ Vulnerability Integrity Impact (VI): High

▪ Vulnerability Availability Impact (VA): High

▪ Subsequent Confidentiality Impact (SC): None

▪ Subsequent Integrity Impact (SI): None

▪ Subsequent Availability Impact (SA): None

Affected Vendors & Systems

Vendor orval-labs

References & Advisory Links

Metadata Profile

Database Authority

European Union Agency for Cybersecurity (ENISA) EUVD

Assigner

GitHub_M

EPSS Probability

0.48

Known Aliases

CVE-2026-71868

Published On

2026-08-19

Last Updated

2026-08-21