CriticalCritical vulnerability

CVE-2026-96759 (CVSS 9.3)

NVD · officialPublished Sep 23, 2026Risk 50/100EPSS 0.4%

orval before 8.29.0 fails to escape the operationId parameter when emitting it into generated TanStack Query mutator options metadata objects. Attackers can inject arbitrary JavaScript code through a crafted operationId in an OpenAPI specification that executes when generated hooks are called.

Technical details

CVSS

9.3

AV:NetworkAC:LowPR:NoneUI:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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