RCE in Orval-Labs Orval
CVE-2026-96758
orval @orval/core before 8.28.0 contains a code injection vulnerability in the form-data serializer that fails to escape multipart property names in generated template literals. Attackers can inject ${...} expressions into OpenAPI schema property names that execute as live interpolation when the generated client builds FormData bodies with consumer process privileges.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq (vendor-advisory)
- github.com/orval-labs/orval/pull/3988 (issue-tracking, patch)
- github.com/orval-labs/orval/commit/975a769a76151354dead879feadfa3537ff065fe (patch)
- github.com/orval-labs/orval/blob/v8.27.0/packages/core/src/getters/res-req-type… (technical-description)
- github.com/orval-labs/orval (product)
- www.vulncheck.com/advisories/orval-orval-core-before-8.28.0-code-injection-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-96758?
- CVE-2026-96758 is a critical-severity vulnerability in Orval-Labs Orval, classified under Code Injection. CVSS score: 9.8/10. Published 2026-09-23.
- How severe is CVE-2026-96758?
- Critical severity. CVSS v3 base score is 9.8 out of 10.