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Vulnerability record · CVE-2026-25141 · published 30 January 2026

CVE-2026-25141: Orval code injection vulnerability

Orval · Orval

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.

9.3 CVSS 4.0 Critical EPSS 0.70% · top 48.9% CWE-94 · Code injection
9.3CVSS 4.0 base score
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7c/packages/core/src/utils/string.ts#L227 Product
https://github.com/orval-labs/orval/releases/tag/v7.21.0 ProductRelease Notes
https://github.com/orval-labs/orval/releases/tag/v8.2.0 ProductRelease Notes
https://github.com/orval-labs/orval/security/advisories/GHSA-gch2-phqh-fg9q Vendor Advisory
https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jv Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-25141), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.