Vulnerability-Lookup

CVE-2026-71867 (GCVE-0-2026-71867)

Vulnerability from cvelistv5 – Published: 2026-08-19 17:38 – Updated: 2026-08-19 18:21

Title

Orval: RCE via schema property name -> computed-property-key injection in the MSW mock generator

Summary

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a single quote in a schema property name is emitted into single-quoted object keys in generated MSW mock factories without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated mock factory is called by tests or an MSW handler, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/keys.ts function getKey and MSW mock 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: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-19 18:21 UTC

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

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-2026-71867

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

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-2w86-xfrc-g85r
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/orval-labs/orval/security/advisories/GHSA-2w86-xfrc-g85r

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "product": "orval",
          "vendor": "orval-labs",
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    }
  ],
  "id": "CVE-2026-71867",
  "lastModified": "2026-08-19T19:17:24.023",
  "metrics": {
    "cvssMetricV40": [
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          "Recovery": "NOT_DEFINED",
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          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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    }
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
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      "type": "Secondary"
    }
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.

Action not permitted

CVE-2026-71867 (GCVE-0-2026-71867)

FKIE_CVE-2026-71867

Tags

Sightings

Nomenclature