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Vulnerability · Published Jan 30, 2026 · Assigned by GitHub_M

CVE-2026-25141Orval has a code injection via unsanitized x-enum-descriptions uing JS comments

Critical 9.3

In plain English

A critical-severity code injection in orval from orval-labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)9.3Critical
Exploit odds (30 days)0.7%top 47.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@orval/core7.21.0GHSA-gch2-phqh-fg9q
npm@orval/core8.2.0GHSA-gch2-phqh-fg9q

Affected products (as reported)

VendorProductVersions
orval-labs orval >= 7.19.0, < 7.21.0>= 8.0.0, < 8.2.0

Weakness: CWE-94 · 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

References