Remote Code Execution Vulnerability in Orval by Orval Labs
CVE-2026-62682

9.3CRITICAL

Key Information:

Vendor

Orval-labs

Status
Orval
Vendor
CVE Published:
19 August 2026

What is CVE-2026-62682?

The Orval library generates type-safe JavaScript clients from OpenAPI v3 and Swagger v2 specifications. Versions prior to 8.21.0 contain a vulnerability where unescaped input can result in malicious JavaScript being embedded in request URL templates. This issue arises when the output.baseUrl.getBaseUrlFromSpecification is enabled, allowing attacker-controlled JavaScript to execute in various environments, potentially leading to severe impacts on security. This flaw has been addressed in version 8.21.0 with safe encoding measures.

Affected Version(s)

orval < 8.21.0

References

https://github.com/orval-labs/orval/security/advisories/G...
x_refsource_CONFIRM
https://github.com/orval-labs/orval/pull/3692
x_refsource_MISC
https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bca...
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.