Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a single quote in a schema property name is emitted into single-quoted object keys in generated MSW mock factories without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated mock factory is called by tests or an MSW handler, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/keys.ts function getKey and MSW mock generation. This issue is fixed in version 8.21.0.

Project Subscriptions

Vendors Products
Orval-labs Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 19 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 19 Aug 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Orval-labs
Orval-labs orval
Vendors & Products Orval-labs
Orval-labs orval

Wed, 19 Aug 2026 17:45:00 +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 single quote in a schema property name is emitted into single-quoted object keys in generated MSW mock factories without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated mock factory is called by tests or an MSW handler, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/keys.ts function getKey and MSW mock generation. This issue is fixed in version 8.21.0.
Title Orval: RCE via schema property name -> computed-property-key injection in the MSW mock generator
Weaknesses CWE-89
CWE-95
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'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-19T18:21:51.339Z

Reserved: 2026-08-07T18:26:53.524Z

Link: CVE-2026-71867

cve-icon Vulnrichment

Updated: 2026-08-19T18:21:32.015Z

cve-icon NVD

Status : Received

Published: 2026-08-19T18:17:24.277

Modified: 2026-08-19T19:17:24.023

Link: CVE-2026-71867

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-19T18:30:03Z

Weaknesses