---
id: CVE-2026-96758
title: >-
  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
summary: >-
  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…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: orval-labs
product: orval
affected:
  - orval < 8.28.0
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T19:19:54.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96758'
references:
  - url: 'https://github.com/orval-labs/orval'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/orval-labs/orval/blob/v8.27.0/packages/core/src/getters/res-req-types.ts#L808
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/orval-labs/orval/commit/975a769a76151354dead879feadfa3537ff065fe
    label: disclosure@vulncheck.com
  - url: 'https://github.com/orval-labs/orval/pull/3988'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/orval-orval-core-before-8.28.0-code-injection-via-form-data
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-23T18:38:59.966755Z'
ingestedAt: '2026-09-23T17:28:14.858Z'
epss: 0.00541
epssPercentile: 0.43079
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.