Critical 9.3Published Aug 19, 2026

CVE-2026-62681Orval: RCE via OpenAPI path -> unescaped request-URL template literal (backtick breakout)

Updated under an hour ago (2026-10-19 06:30 UTC)

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Exploited in the last 30 days

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, an unescaped backtick in an OpenAPI path is emitted into request URL template literals generated for axios, fetch, react-query, and SWR clients without safe encoding. This permits attacker-controlled JavaScript to be evaluated when a generated request, URL-builder, or query-key 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 and route generation consumers. This issue is fixed in version 8.21.0.

CVSS: 9.3 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-94, CWE-116, CWE-1336
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

orval-labs orval orval_labs:orval (from the name)	before 8.21.0	CNA record

References

https://github.com/orval-labs/orval/security/advisories/GHSA-fg9p-mrxr-hvq7x-refsource-confirm
https://github.com/orval-labs/orval/pull/3692x-refsource-misc
https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6x-refsource-misc
https://github.com/orval-labs/orval/releases/tag/v8.21.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.