Vulnerability-Lookup

CVE-2026-71865 (GCVE-0-2026-71865)

Vulnerability from cvelistv5 – Published: 2026-08-19 17:36 – Updated: 2026-08-21 21:49

Title

Orval: Import-time RCE via query parameter name -> computed-property-key injection in the zod cli

Summary

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 query 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 query request-validation generation. This issue is fixed in version 8.21.0.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 21:10 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')
CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-116 - Improper Encoding or Escaping of Output

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/orval-labs/orval/security/advi…	x_refsource_CONFIRM
https://github.com/orval-labs/orval/pull/3692	x_refsource_MISC
https://github.com/orval-labs/orval/commit/8ef1bf…	x_refsource_MISC
https://github.com/orval-labs/orval/releases/tag/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
orval-labs	orval	Affected: < 8.21.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-71865

Vulnerability from fkie_nvd - Published: 2026-08-19 18:17 - Updated: 2026-09-09 21:20

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6
	security-advisories@github.com	https://github.com/orval-labs/orval/pull/3692
	security-advisories@github.com	https://github.com/orval-labs/orval/releases/tag/v8.21.0
	security-advisories@github.com	https://github.com/orval-labs/orval/security/advisories/GHSA-653q-5476-x79g

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
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          "product": "orval",
          "vendor": "orval-labs",
          "versions": [
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    }
  ],
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          "baseScore": 9.3,
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          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
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          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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}

GHSA-653Q-5476-X79G

Vulnerability from github – Published: 2026-09-03 18:18 – Updated: 2026-09-03 18:18

Summary

Orval: Import-time RCE via query parameter name -> computed-property-key injection in the zod cli

Details

Summary

orval's zod client emits each query parameter name as a double-quoted key in the generated zod.object({...}) request-validation schema WITHOUT escaping the double quote. A " in the query parameter name closes the key and lands in object-literal context, where an injected computed property key [expr] is evaluated when zod.object({...}) runs -- at MODULE IMPORT (export const OpQueryParams = zod.object({...}) executes on load) -> import-time RCE. The query parameter name is a pure data field. Verified on orval 8.19.0 / Node.

Details

export const OpQueryParams = zod.object({ "a":zod.string(),[require("fs").writeFileSync("PWNED","")]:zod.string(),"b": ... })

Also affects the hono client (reuses zod generation). orval escapes values in zod arrays but not keys in zod.object. Sibling fields: schema property name, header parameter name (CVE-97) (separate reports). Distinct from orval's $ref / route-path / server-url / zod-default findings.

PoC

reproduce.sh (+ make_spec.py) attached: a query parameter name that breaks the zod.object key and injects a computed key; evaluating it (= importing the module) writes the marker. Verified on 8.19.0.

Impact

JavaScript / OS command execution at import time for anyone who generates an orval zod client from an attacker-controlled spec and imports it.

Suggested fix

Escape the query parameter name for the JS string key (JSON.stringify) in the zod.object key generation; never interpolate a raw name adjacent to [ ] in object-literal position. maintainer-report.txt make_spec.py reproduce.sh

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

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    {
      "package": {
        "ecosystem": "npm",
        "name": "orval"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.21.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-71865"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94",
      "CWE-95",
      "CWE-116"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-03T18:18:09Z",
    "nvd_published_at": "2026-08-19T18:17:23Z",
    "severity": "CRITICAL"
  },
  "details": "### Summary\n\norval\u0027s zod client emits each query parameter name as a double-quoted key in the generated zod.object({...}) request-validation schema WITHOUT escaping the double quote. A \" in the query parameter name closes the key and lands in object-literal context, where an injected computed property key [expr] is evaluated when zod.object({...}) runs -- at MODULE IMPORT (export const OpQueryParams = zod.object({...}) executes on load) -\u003e import-time RCE. The query parameter name is a pure data field. Verified on orval 8.19.0 / Node.\n\n### Details\n\nexport const OpQueryParams = zod.object({ \"a\":zod.string(),[require(\"fs\").writeFileSync(\"PWNED\",\"\")]:zod.string(),\"b\": ... })\n\nAlso affects the hono client (reuses zod generation). orval escapes values in zod arrays but not keys in zod.object. Sibling fields: schema property name, header parameter name (CVE-97) (separate reports). Distinct from orval\u0027s $ref / route-path / server-url / zod-default findings.\n\n### PoC\n\nreproduce.sh (+ make_spec.py) attached: a query parameter name that breaks the zod.object key and injects a computed key; evaluating it (= importing the module) writes the marker. Verified on 8.19.0.\n\n### Impact\n\nJavaScript / OS command execution at import time for anyone who generates an orval zod client from an attacker-controlled spec and imports it.\n\n### Suggested fix\n\nEscape the query parameter name for the JS string key (JSON.stringify) in the zod.object key generation; never interpolate a raw name adjacent to [ ] in object-literal position. [maintainer-report.txt](https://github.com/user-attachments/files/29426090/maintainer-report.txt) [make_spec.py](https://github.com/user-attachments/files/29426091/make_spec.py) [reproduce.sh](https://github.com/user-attachments/files/29426092/reproduce.sh)",
  "id": "GHSA-653q-5476-x79g",
  "modified": "2026-09-03T18:18:09Z",
  "published": "2026-09-03T18:18:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-653q-5476-x79g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71865"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/pull/3692"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/orval-labs/orval"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/releases/tag/v8.21.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Orval: Import-time RCE via query parameter name -\u003e computed-property-key injection in the zod cli"
}

Sightings

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Detection rules are retrieved from Rulezet.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CVE-2026-71865 (GCVE-0-2026-71865)

FKIE_CVE-2026-71865

GHSA-653Q-5476-X79G

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