by Kastro
Paper/Archive/CVE-2026-71864

CVE-2026-71864

orval-labs orval — Orval: Import-time RCE via header parameter name -> computed-property-key injection in the zod client

EPSS 0.7%public exploitCVSS 9.3
critical.is priorityof 100
48
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 51.3.513 × 2010.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a double quote in a header parameter name is emitted into the generated request-validation zod.object({...}) schema without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts and header request-validation generation. This issue is fixed in version 8.21.0.

Affected

ProductAffectedFixed inSource
orval< 8.21.0–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/orval-labs/orval/security/advisories/GHSA-6437-gxhq-pqv8refgithub.com/orval-labs/orval/pull/3692refgithub.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6refgithub.com/orval-labs/orval/releases/tag/v8.21.0