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@hey-api/openapi-ts vulnerabilities

Vulnerabilities published for @hey-api/openapi-ts in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerability: 1

  1. CVE-2026-48819

    Medium · CVSS 4.8EPSS 0.27%Fix available

    Hey API: `buildClientParams` template: prototype chain substitution via unknown `$<slot>___proto__` key

    Hey API is an ecosystem for turning API specifications into production-ready code. Prior to 0.97.3, dist/clients/core/params.ts ships a runtime template copied into generated SDKs as params.gen.ts, and buildClientParams writes unknown slot-prefixed keys such as $body_, $headers_, $path_, and $query_ directly to the corresponding slot, allowing $query___proto__ alongside a legitimate q field to set params.query through params["query"]["__proto__"] = value, call Object.setPrototypeOf(params.query, value), and expose inherited attacker-controlled keys during for..in iteration. This issue is fixed in version 0.97.3.

    @hey-api/openapi-tsNode.js
    • Update to 0.97.3
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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