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Orval CVE-2026-24132

CRITICAL
Command Injection (CWE-77)
2026-01-23 security-advisories@github.com GHSA-f456-rf33-4626
Command Injection Orval
9.8
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch released
Feb 27, 2026 - 19:00 nvd
Patch available
CVE Published
Jan 23, 2026 - 00:15 nvd
CRITICAL 9.8

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 1 npm packages depend on @orval/mock (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 8.0.0-rc.0.

DescriptionGitHub Advisory

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions 7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.

AnalysisAI

Orval TypeScript code generator versions 7.19+ have a command injection vulnerability allowing RCE through malicious OpenAPI specifications during code generation.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Provide malicious OpenAPI specification
Exploit
Orval parses const keyword in schema
Execution
Unescaped values injected into mock generator
Impact
Arbitrary TypeScript/JavaScript code executed
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Vulnerability AssessmentAI

Exploitation Attacker controls or modifies OpenAPI/Swagger specification input to Orval during code generation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8 with patch. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A developer uses Orval to generate a TypeScript client from a malicious OpenAPI spec, triggering command injection that compromises their development environment.
Remediation Update Orval to the patched version. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify all projects and repositories using Orval and document current versions in use. …

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CVE-2026-24132 vulnerability details – vuln.today
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