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Orval CVE-2026-25141

CRITICAL
Code Injection (CWE-94)
2026-01-30 security-advisories@github.com GHSA-gch2-phqh-fg9q
Code 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
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
CVE Published
Jan 30, 2026 - 21:15 nvd
CRITICAL 9.8

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 10 npm packages depend on @orval/core (10 direct, 0 indirect)

Ecosystem-wide dependent count for version 7.19.0.

DescriptionGitHub Advisory

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.

AnalysisAI

Code injection in Orval TypeScript API client generator versions 7.19.0 to before 7.22.0. Generated client code may be vulnerable to injection through crafted OpenAPI specifications.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft malicious OpenAPI specification with JSFuck payload
Exploit
Orval processes spec during code generation
Execution
Incomplete escaping allows bracket/parenthesis bypass
Impact
Generated TypeScript client executes arbitrary JavaScript
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Vulnerability AssessmentAI

Exploitation Orval versions 7.19.0-7.20.x or 8.0.0-8.1.x processing untrusted OpenAPI v3/Swagger v2 specifications containing JSFuck-encoded payloads using unescaped characters: [] () ! … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Attacker provides malicious OpenAPI spec, Orval generates TypeScript client with injected code that executes in the consuming application.
Remediation Update to Orval 7.22.0+. Detailed patch versions, workarounds, and compensating controls in full report.
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Within 24 hours: Identify all projects using Orval and determine which versions are deployed in development, staging, and production environments. …

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CVE-2026-25141 vulnerability details – vuln.today
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