CVE-2026-48819

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Source
https://cve.org/CVERecord?id=CVE-2026-48819
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48819.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48819
Aliases
Published
2026-07-17T19:46:00.402Z
Modified
2026-07-25T03:56:47.758441212Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Hey API: `buildClientParams` template: prototype chain substitution via unknown `$<slot>___proto__` key
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-1321"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48819.json"
}
References

Affected packages

Git / github.com/hey-api/hey-api

Affected ranges

Type
GIT
Repo
https://github.com/hey-api/hey-api
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
023909137a15eff9c0263d3bcd116140076b214f
Fixed
da321a1529eb3c90d2109da870f514b915a60169
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.97.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

Other
2026-04-13
2026-04-20
2026-04-28
@hey-api/client-axios@0.*
@hey-api/client-axios@0.1.0
@hey-api/client-axios@0.1.1
@hey-api/client-axios@0.2.0
@hey-api/client-axios@0.2.1
@hey-api/client-axios@0.2.10
@hey-api/client-axios@0.2.11
@hey-api/client-axios@0.2.12
@hey-api/client-axios@0.2.2
@hey-api/client-axios@0.2.3
@hey-api/client-axios@0.2.4
@hey-api/client-axios@0.2.5
@hey-api/client-axios@0.2.6
@hey-api/client-axios@0.2.7
@hey-api/client-axios@0.2.8
@hey-api/client-axios@0.2.9
@hey-api/client-axios@0.3.0
@hey-api/client-axios@0.3.1
@hey-api/client-axios@0.3.2
@hey-api/client-axios@0.3.3
@hey-api/client-axios@0.3.4
@hey-api/client-axios@0.4.0
@hey-api/client-axios@0.5.0
@hey-api/client-axios@0.5.1
@hey-api/client-axios@0.5.2
@hey-api/client-axios@0.5.3
@hey-api/client-axios@0.6.0
@hey-api/client-axios@0.6.1
@hey-api/client-axios@0.6.2
@hey-api/client-axios@0.6.3
@hey-api/client-axios@0.7.0
@hey-api/client-axios@0.8.0
@hey-api/client-axios@0.9.0
@hey-api/client-axios@0.9.1
@hey-api/client-fetch@0.*
@hey-api/client-fetch@0.1.0
@hey-api/client-fetch@0.1.1
@hey-api/client-fetch@0.1.10
@hey-api/client-fetch@0.1.11
@hey-api/client-fetch@0.1.12
@hey-api/client-fetch@0.1.13
@hey-api/client-fetch@0.1.14
@hey-api/client-fetch@0.1.2
@hey-api/client-fetch@0.1.3
@hey-api/client-fetch@0.1.4
@hey-api/client-fetch@0.1.5
@hey-api/client-fetch@0.1.6
@hey-api/client-fetch@0.1.7
@hey-api/client-fetch@0.1.8
@hey-api/client-fetch@0.1.9
@hey-api/client-fetch@0.10.0
@hey-api/client-fetch@0.10.2
@hey-api/client-fetch@0.11.0
@hey-api/client-fetch@0.12.0
@hey-api/client-fetch@0.13.0
@hey-api/client-fetch@0.13.1
@hey-api/client-fetch@0.2.0
@hey-api/client-fetch@0.2.1
@hey-api/client-fetch@0.2.2
@hey-api/client-fetch@0.2.3
@hey-api/client-fetch@0.2.4
@hey-api/client-fetch@0.3.0
@hey-api/client-fetch@0.3.1
@hey-api/client-fetch@0.3.2
@hey-api/client-fetch@0.3.3
@hey-api/client-fetch@0.3.4
@hey-api/client-fetch@0.4.0
@hey-api/client-fetch@0.4.1
@hey-api/client-fetch@0.4.2
@hey-api/client-fetch@0.4.3
@hey-api/client-fetch@0.4.4
@hey-api/client-fetch@0.5.0
@hey-api/client-fetch@0.5.1
@hey-api/client-fetch@0.5.2
@hey-api/client-fetch@0.5.3
@hey-api/client-fetch@0.5.4
@hey-api/client-fetch@0.5.5
@hey-api/client-fetch@0.5.6
@hey-api/client-fetch@0.5.7
@hey-api/client-fetch@0.6.0
@hey-api/client-fetch@0.7.0
@hey-api/client-fetch@0.7.1
@hey-api/client-fetch@0.7.2
@hey-api/client-fetch@0.7.3
@hey-api/client-fetch@0.8.0
@hey-api/client-fetch@0.8.1
@hey-api/client-fetch@0.8.2
@hey-api/client-fetch@0.8.3
@hey-api/client-fetch@0.8.4
@hey-api/client-fetch@0.9.0
@hey-api/client-next@0.*
@hey-api/client-next@0.1.0
@hey-api/client-next@0.2.0
@hey-api/client-next@0.2.1
@hey-api/client-next@0.2.2
@hey-api/client-next@0.2.3
@hey-api/client-next@0.2.4
@hey-api/client-next@0.3.0
@hey-api/client-next@0.3.2
@hey-api/client-next@0.4.0
@hey-api/client-next@0.5.0
@hey-api/client-next@0.5.1
@hey-api/client-nuxt@0.*
@hey-api/client-nuxt@0.1.0
@hey-api/client-nuxt@0.1.1
@hey-api/client-nuxt@0.1.2
@hey-api/client-nuxt@0.1.3
@hey-api/client-nuxt@0.2.0
@hey-api/client-nuxt@0.2.1
@hey-api/client-nuxt@0.2.2
@hey-api/client-nuxt@0.2.3
@hey-api/client-nuxt@0.2.4
@hey-api/client-nuxt@0.3.0
@hey-api/client-nuxt@0.3.1
@hey-api/client-nuxt@0.4.0
@hey-api/codegen-core@0.*
@hey-api/codegen-core@0.1.0
@hey-api/codegen-core@0.2.0
@hey-api/codegen-core@0.3.0
@hey-api/codegen-core@0.3.1
@hey-api/codegen-core@0.3.2
@hey-api/codegen-core@0.3.3
@hey-api/codegen-core@0.4.0
@hey-api/codegen-core@0.5.0
@hey-api/codegen-core@0.5.1
@hey-api/codegen-core@0.5.2
@hey-api/codegen-core@0.5.3
@hey-api/codegen-core@0.5.4
@hey-api/codegen-core@0.5.5
@hey-api/codegen-core@0.6.0
@hey-api/codegen-core@0.6.1
@hey-api/codegen-core@0.7.0
@hey-api/codegen-core@0.7.1
@hey-api/codegen-core@0.7.2
@hey-api/codegen-core@0.7.3
@hey-api/codegen-core@0.7.4
@hey-api/codegen-core@0.8.1
@hey-api/json-schema-ref-parser@1.*
@hey-api/json-schema-ref-parser@1.3.0
@hey-api/json-schema-ref-parser@1.3.1
@hey-api/nuxt@0.*
@hey-api/nuxt@0.1.0
@hey-api/nuxt@0.1.1
@hey-api/nuxt@0.1.2
@hey-api/nuxt@0.1.3
@hey-api/nuxt@0.1.4
@hey-api/nuxt@0.1.5
@hey-api/nuxt@0.1.6
@hey-api/nuxt@0.1.7
@hey-api/nuxt@0.2.0
@hey-api/nuxt@0.2.1
@hey-api/openapi-ts@0.*
@hey-api/openapi-ts@0.34.0
@hey-api/openapi-ts@0.34.1
@hey-api/openapi-ts@0.34.2
@hey-api/openapi-ts@0.34.3
@hey-api/openapi-ts@0.34.4
@hey-api/openapi-ts@0.34.5
@hey-api/openapi-ts@0.35.0
@hey-api/openapi-ts@0.36.0
@hey-api/openapi-ts@0.36.1
@hey-api/openapi-ts@0.36.2
@hey-api/openapi-ts@0.37.0
@hey-api/openapi-ts@0.37.1
@hey-api/openapi-ts@0.37.2
@hey-api/openapi-ts@0.37.3
@hey-api/openapi-ts@0.38.0
@hey-api/openapi-ts@0.38.1
@hey-api/openapi-ts@0.39.0
@hey-api/openapi-ts@0.40.0
@hey-api/openapi-ts@0.40.1
@hey-api/openapi-ts@0.40.2
@hey-api/openapi-ts@0.41.0
@hey-api/openapi-ts@0.42.0
@hey-api/openapi-ts@0.42.1
@hey-api/openapi-ts@0.43.0
@hey-api/openapi-ts@0.43.1
@hey-api/openapi-ts@0.43.2
@hey-api/openapi-ts@0.44.0
@hey-api/openapi-ts@0.45.0
@hey-api/openapi-ts@0.45.1
@hey-api/openapi-ts@0.46.0
@hey-api/openapi-ts@0.46.1
@hey-api/openapi-ts@0.46.2
@hey-api/openapi-ts@0.46.3
@hey-api/openapi-ts@0.47.0
@hey-api/openapi-ts@0.47.1
@hey-api/openapi-ts@0.47.2
@hey-api/openapi-ts@0.48.0
@hey-api/openapi-ts@0.48.1
@hey-api/openapi-ts@0.48.2
@hey-api/openapi-ts@0.48.3
@hey-api/openapi-ts@0.49.0
@hey-api/openapi-ts@0.50.0
@hey-api/openapi-ts@0.50.1
@hey-api/openapi-ts@0.50.2
@hey-api/openapi-ts@0.51.0
@hey-api/openapi-ts@0.52.0
@hey-api/openapi-ts@0.52.1
@hey-api/openapi-ts@0.52.10
@hey-api/openapi-ts@0.52.11
@hey-api/openapi-ts@0.52.2
@hey-api/openapi-ts@0.52.3
@hey-api/openapi-ts@0.52.4
@hey-api/openapi-ts@0.52.5
@hey-api/openapi-ts@0.52.6
@hey-api/openapi-ts@0.52.7
@hey-api/openapi-ts@0.52.8
@hey-api/openapi-ts@0.52.9
@hey-api/openapi-ts@0.53.0
@hey-api/openapi-ts@0.53.1
@hey-api/openapi-ts@0.53.10
@hey-api/openapi-ts@0.53.11
@hey-api/openapi-ts@0.53.12
@hey-api/openapi-ts@0.53.2
@hey-api/openapi-ts@0.53.3
@hey-api/openapi-ts@0.53.4
@hey-api/openapi-ts@0.53.5
@hey-api/openapi-ts@0.53.6
@hey-api/openapi-ts@0.53.7
@hey-api/openapi-ts@0.53.8
@hey-api/openapi-ts@0.53.9
@hey-api/openapi-ts@0.54.0
@hey-api/openapi-ts@0.54.1
@hey-api/openapi-ts@0.54.2
@hey-api/openapi-ts@0.54.3
@hey-api/openapi-ts@0.54.4
@hey-api/openapi-ts@0.55.0
@hey-api/openapi-ts@0.55.1
@hey-api/openapi-ts@0.55.2
@hey-api/openapi-ts@0.55.3
@hey-api/openapi-ts@0.56.0
@hey-api/openapi-ts@0.56.1
@hey-api/openapi-ts@0.56.2
@hey-api/openapi-ts@0.56.3
@hey-api/openapi-ts@0.57.0
@hey-api/openapi-ts@0.57.1
@hey-api/openapi-ts@0.58.0
@hey-api/openapi-ts@0.59.0
@hey-api/openapi-ts@0.59.1
@hey-api/openapi-ts@0.59.2
@hey-api/openapi-ts@0.60.0
@hey-api/openapi-ts@0.60.1
@hey-api/openapi-ts@0.61.0
@hey-api/openapi-ts@0.61.1
@hey-api/openapi-ts@0.61.2
@hey-api/openapi-ts@0.61.3
@hey-api/openapi-ts@0.62.0
@hey-api/openapi-ts@0.62.1
@hey-api/openapi-ts@0.62.2
@hey-api/openapi-ts@0.62.3
@hey-api/openapi-ts@0.63.0
@hey-api/openapi-ts@0.63.1
@hey-api/openapi-ts@0.63.2
@hey-api/openapi-ts@0.64.0
@hey-api/openapi-ts@0.64.1
@hey-api/openapi-ts@0.64.10
@hey-api/openapi-ts@0.64.11
@hey-api/openapi-ts@0.64.12
@hey-api/openapi-ts@0.64.13
@hey-api/openapi-ts@0.64.14
@hey-api/openapi-ts@0.64.15
@hey-api/openapi-ts@0.64.2
@hey-api/openapi-ts@0.64.3
@hey-api/openapi-ts@0.64.4
@hey-api/openapi-ts@0.64.5
@hey-api/openapi-ts@0.64.6
@hey-api/openapi-ts@0.64.7
@hey-api/openapi-ts@0.64.8
@hey-api/openapi-ts@0.64.9
@hey-api/openapi-ts@0.65.0
@hey-api/openapi-ts@0.66.0
@hey-api/openapi-ts@0.66.1
@hey-api/openapi-ts@0.66.2
@hey-api/openapi-ts@0.66.3
@hey-api/openapi-ts@0.66.5
@hey-api/openapi-ts@0.66.6
@hey-api/openapi-ts@0.66.7
@hey-api/openapi-ts@0.67.0
@hey-api/openapi-ts@0.67.1
@hey-api/openapi-ts@0.67.2
@hey-api/openapi-ts@0.67.3
@hey-api/openapi-ts@0.67.5
@hey-api/openapi-ts@0.68.0
@hey-api/openapi-ts@0.68.1
@hey-api/openapi-ts@0.69.0
@hey-api/openapi-ts@0.69.1
@hey-api/openapi-ts@0.69.2
@hey-api/openapi-ts@0.70.0
@hey-api/openapi-ts@0.71.0
@hey-api/openapi-ts@0.71.1
@hey-api/openapi-ts@0.72.0
@hey-api/openapi-ts@0.72.1
@hey-api/openapi-ts@0.72.2
@hey-api/openapi-ts@0.73.0
@hey-api/openapi-ts@0.74.0
@hey-api/openapi-ts@0.75.0
@hey-api/openapi-ts@0.76.0
@hey-api/openapi-ts@0.77.0
@hey-api/openapi-ts@0.78.0
@hey-api/openapi-ts@0.78.1
@hey-api/openapi-ts@0.78.2
@hey-api/openapi-ts@0.78.3
@hey-api/openapi-ts@0.79.0
@hey-api/openapi-ts@0.79.1
@hey-api/openapi-ts@0.79.2
@hey-api/openapi-ts@0.80.0
@hey-api/openapi-ts@0.80.1
@hey-api/openapi-ts@0.80.10
@hey-api/openapi-ts@0.80.11
@hey-api/openapi-ts@0.80.12
@hey-api/openapi-ts@0.80.13
@hey-api/openapi-ts@0.80.14
@hey-api/openapi-ts@0.80.15
@hey-api/openapi-ts@0.80.16
@hey-api/openapi-ts@0.80.17
@hey-api/openapi-ts@0.80.18
@hey-api/openapi-ts@0.80.2
@hey-api/openapi-ts@0.80.3
@hey-api/openapi-ts@0.80.4
@hey-api/openapi-ts@0.80.5
@hey-api/openapi-ts@0.80.6
@hey-api/openapi-ts@0.80.7
@hey-api/openapi-ts@0.80.8
@hey-api/openapi-ts@0.80.9
@hey-api/openapi-ts@0.81.0
@hey-api/openapi-ts@0.81.1
@hey-api/openapi-ts@0.82.0
@hey-api/openapi-ts@0.82.1
@hey-api/openapi-ts@0.82.4
@hey-api/openapi-ts@0.82.5
@hey-api/openapi-ts@0.83.0
@hey-api/openapi-ts@0.83.1
@hey-api/openapi-ts@0.84.0
@hey-api/openapi-ts@0.84.1
@hey-api/openapi-ts@0.84.2
@hey-api/openapi-ts@0.84.3
@hey-api/openapi-ts@0.84.4
@hey-api/openapi-ts@0.85.0
@hey-api/openapi-ts@0.85.1
@hey-api/openapi-ts@0.85.2
@hey-api/openapi-ts@0.86.0
@hey-api/openapi-ts@0.86.1
@hey-api/openapi-ts@0.86.10
@hey-api/openapi-ts@0.86.11
@hey-api/openapi-ts@0.86.12
@hey-api/openapi-ts@0.86.2
@hey-api/openapi-ts@0.86.3
@hey-api/openapi-ts@0.86.4
@hey-api/openapi-ts@0.86.5
@hey-api/openapi-ts@0.86.6
@hey-api/openapi-ts@0.86.7
@hey-api/openapi-ts@0.86.8
@hey-api/openapi-ts@0.86.9
@hey-api/openapi-ts@0.87.0
@hey-api/openapi-ts@0.87.1
@hey-api/openapi-ts@0.87.2
@hey-api/openapi-ts@0.87.3
@hey-api/openapi-ts@0.87.4
@hey-api/openapi-ts@0.87.5
@hey-api/openapi-ts@0.88.0
@hey-api/openapi-ts@0.88.1
@hey-api/openapi-ts@0.88.2
@hey-api/openapi-ts@0.89.0
@hey-api/openapi-ts@0.89.1
@hey-api/openapi-ts@0.89.2
@hey-api/openapi-ts@0.90.0
@hey-api/openapi-ts@0.90.1
@hey-api/openapi-ts@0.90.10
@hey-api/openapi-ts@0.90.2
@hey-api/openapi-ts@0.90.3
@hey-api/openapi-ts@0.90.4
@hey-api/openapi-ts@0.90.6
@hey-api/openapi-ts@0.90.7
@hey-api/openapi-ts@0.90.8
@hey-api/openapi-ts@0.90.9
@hey-api/openapi-ts@0.91.0
@hey-api/openapi-ts@0.91.1
@hey-api/openapi-ts@0.92.2
@hey-api/openapi-ts@0.92.3
@hey-api/openapi-ts@0.92.4
@hey-api/openapi-ts@0.93.0
@hey-api/openapi-ts@0.93.1
@hey-api/openapi-ts@0.94.0
@hey-api/openapi-ts@0.94.1
@hey-api/openapi-ts@0.94.2
@hey-api/openapi-ts@0.94.3
@hey-api/openapi-ts@0.94.4
@hey-api/openapi-ts@0.95.0
@hey-api/openapi-ts@0.97.0
@hey-api/rollup-plugin@0.*
@hey-api/rollup-plugin@0.1.0
@hey-api/rollup-plugin@0.1.1
@hey-api/rollup-plugin@0.1.2
@hey-api/shared@0.*
@hey-api/shared@0.1.0
@hey-api/shared@0.1.1
@hey-api/shared@0.1.2
@hey-api/shared@0.2.0
@hey-api/shared@0.2.1
@hey-api/shared@0.2.2
@hey-api/shared@0.2.3
@hey-api/shared@0.2.4
@hey-api/shared@0.2.5
@hey-api/shared@0.3.0
@hey-api/shared@0.4.2
@hey-api/types@0.*
@hey-api/types@0.1.1
@hey-api/types@0.1.2
@hey-api/types@0.1.3
@hey-api/types@0.1.4
@hey-api/vite-plugin@0.*
@hey-api/vite-plugin@0.2.0
@hey-api/vite-plugin@0.2.1
v0.*
v0.27.39
v0.28.0
v0.29.0
v0.29.1
v0.29.2
v0.30.0
v0.31.0
v0.31.1
v0.32.0
v0.32.1
v0.33.0
v0.33.1
v0.33.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48819.json"