Type-safe JavaScript Client Vulnerability in Orval by Orval Labs
CVE-2026-62681

9.3CRITICAL

Key Information:

Vendor

Orval-labs

Status
Orval
Vendor
CVE Published:
19 August 2026

What is CVE-2026-62681?

An issue in Orval prior to version 8.21.0 allows unescaped backticks in OpenAPI paths to be emitted into request URL template literals. This vulnerability enables attacker-controlled JavaScript to execute within the environment where these requests are processed, which may include developer, CI, test, or live application environments. The vulnerable code is found in packages/core/src/getters/route.ts, affecting how routes are generated for axios, fetch, react-query, and SWR clients. The flaw has been addressed in the latest release, version 8.21.0.

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

.