CVE-2026-96758 json
orval @orval/core before 8.28.0 Code Injection via Form-Data
published 2mo ago modified last mo. also EUVD-2026-85408 , GHSA-jwhm-6748-j6pq
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository orval-labs/orval. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
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 property names that execute as live interpolation when the generated client builds FormData bodies with consumer process privileges.
Patch / fix
- npm orval >=8.29.0
- orval-labs orval 8.28.0
- github.com/orval-labs/orval@975a769 commit
- github.com/orval-labs/orval#3988 pull request
Is CVE-2026-96758 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- last mo.
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | orval | <=8.27.0 |
>=8.29.0 |
Affected products
- orval-labs orval
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
github.com
/orval-labs/orval/pull/3988
patch, issue-tracking
-
github.com
/orval-labs/orval/commit/975a769a76151354dead879feadfa3537ff065fe
patch
-
github.com
/orval-labs/orval/security/advisories/GHSA-jwhm-6748-j6pq
vendor-advisory, exploit, advisory
-
github.com
/orval-labs/orval/blob/v8.27.0/packages/core/src/getters/res-req-types.ts#L808
technical-description
-
github.com
/orval-labs/orval
product
-
vulncheck.com
/advisories/orval-orval-core-before-8.28.0-code-injection-via-form-data
third-party-advisory
Sources
- CVE List CVE-2026-96758
- NVD CVE-2026-96758
- Maintainer advisory GHSA-jwhm-6748-j6pq
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of orval-labs/orval published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.