CVE-2026-62682

Critical

Description

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, an unescaped backtick in servers[0].url is emitted into request URL template literals generated when output.baseUrl.getBaseUrlFromSpecification is enabled without safe encoding. This permits attacker-controlled JavaScript to be evaluated when a generated request or URL-builder function is called, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/route.ts function getFullRoute. This issue is fixed in version 8.21.0.

SeverityCritical

CVSS9.3

Exploit probability—

ProductOrval

PublishedAug 19, 2026

First seenAug 19, 2026

Weakness typeCWE-94Code injection CWE-116CWE-116 CWE-1336CWE-1336

How to fix

Update

orval8.21.0 or later

Affected products

Product	Affected versions	Fixed in
orvalnpm	v < 8.21.0	8.21.0

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