Critical severity · published Sep 23, 2026
CVE-2026-96755
orval @orval/effect 8.14.0 through 8.28.1 Code Injection
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing ${...} syntax, which are executed at module scope when the generated code is built or imported.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OR
orval · orval-labs
8.14.0 before 8.29.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-96755
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-96755
github.com
https://github.com/orval-labs/orval
github.com
https://github.com/orval-labs/orval/blob/v8.28.1/packages/effect/src/index.ts#L298-L302
github.com
https://github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee2c4c69d8dc23
github.com
https://github.com/orval-labs/orval/pull/3995
github.com
https://github.com/orval-labs/orval/security/advisories/GHSA-q7f2-jg6j-r867
www.vulncheck.com
https://www.vulncheck.com/advisories/orval-orval-effect-8.14.0-through-8.28.1-code-injection
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