Critical severity · published Aug 19, 2026
CVE-2026-62682
Orval: RCE via servers[].url -> unescaped request-URL template literal (with getBaseUrlFromSpecification)
9.3
CVSS
0.7%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OR
orval · orval-labs
< 8.21.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-62682
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-62682
github.com
https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6
github.com
https://github.com/orval-labs/orval/pull/3692
github.com
https://github.com/orval-labs/orval/releases/tag/v8.21.0
github.com
https://github.com/orval-labs/orval/security/advisories/GHSA-88f2-fpv8-89q2
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