CVE-2026-96757
orval before 8.29.0 Code Injection via unescaped OpenAPI media-type
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked.
| CWE | CWE-94 |
| Vendor | orval-labs |
| Product | orval |
| Published | Sep 23, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
orval-labs / orval
6.7.1 < 8.29.0
References
github.com: https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p github.com: https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9j github.com: https://github.com/orval-labs/orval/pull/4007 github.com: https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718adb github.com: https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2fe5 github.com: https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L584 github.com: https://github.com/orval-labs/orval vulncheck.com: https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unescaped-openapi-media-type
Credits
Enrik Mustafa