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Orval CVE-2026-22785

CRITICAL
Command Injection (CWE-77)
2026-01-12 security-advisories@github.com GHSA-mwr6-3gp8-9jmj
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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 26, 2026 - 20:00 vuln.today
Public exploit code
Patch released
Feb 26, 2026 - 20:00 nvd
Patch available
CVE Published
Jan 12, 2026 - 19:16 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/mcp (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 7.18.0.

DescriptionGitHub Advisory

orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.

AnalysisAI

orval (TypeScript API client generator) before 7.18.0 has code injection via OpenAPI specification summary fields in MCP server generation. Malicious API specs can inject arbitrary code into generated TypeScript. PoC available, patch available.

Technical ContextAI

When generating MCP server code, the summary field from the OpenAPI specification is incorporated into string literals using simple string concatenation (CWE-77). An attacker who controls the OpenAPI spec can break out of the string and inject arbitrary TypeScript/JavaScript code.

RemediationAI

Update to orval 7.18.0 or later. Review generated code for anomalies.

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CVE-2026-22785 vulnerability details – vuln.today

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