CVE-2026-23947
criticalPriorität · beachten · 49EPSS 0.008 · 57. PerzentilExploit · PoCEUUSEPSS · bewertet 2026-10-27
Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions prior to 7.19.0 until 8.0.2 are vulnerable to arbitrary code execution in environments consuming generated clients. This issue is similar in nature to CVE-2026-22785, but affects a different code path in @orval/core that was not addressed by CVE-2026-22785's fix. The vulnerability allows untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript code into generated clients via the x-enumDescriptions field, which is embedded without proper escaping in getEnumImplementation(). I have confirmed that the injection occurs during const enum generation and results in executable code within the generated schema files. Orval 7.19.0 and 8.0.2 contain a fix for the issue.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 8.9–9.8
SSVC
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schwächen
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Exploits (1)
Öffentlicher Proof-of-Concept- und Exploit-Code.
betroffene Produkte (6)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-h526-wf6g-67jvOrval has a code injection via unsanitized x-enum-descriptions in enum generation2026-01-21ghsa · osvUS
### Impact Arbitrary code execution in environments consuming generated clients This issue is similar in nature to the recently-patched MCP vulnerability (CVE-2026-22785), but affects a different code path in @orval/core that was not addressed by that fix. The vulnerability allows untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript code into generated clients via the x-enumDescriptions field, which is embedded without proper escaping in getEnumImplementation(). I have confirmed that the injection occurs during const enum generation and results in executable code within the generated schema files. ### Patches Upgrade to Orval 8.0.2 ### References An example OpenAPI showing the issue: ```yaml openapi: 3.0.4 info: title: Enum PoC version: "1.0.0" paths: /ping: get: operationId: ping responses: "200": description: ok content: application/json: schema: $ref: "#/components/schemas/EvilEnum" components: schemas: EvilEnum: type: string enum: - PWNED x-enumDescriptions: - "pwned */ require('child_process').execSync('id'); /*" ```
auch bekannt als (3)
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quellen
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Referenzen (8)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2026-23947cnnvd
- https://github.com/orval-labs/orval/releasesPatchcnnvd
- https://github.com/orval-labs/orval/releases/tag/v8.0.2cnnvd
- https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jvcnnvd
- https://github.com/orval-labs/orval/releases/tag/v8.0.2enisa_euvd
- https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jvenisa_euvd
- https://github.com/orval-labs/orval/releases/tag/v8.0.2ProductRelease Notesnvd
- https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jvVendor Advisorynvd
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