High 7.7Published Jan 22, 2026

CVE-2026-24132Orval Mock Generation Code Injection via const

Updated under an hour ago (Oct 29, 2026, 7:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions 7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.

CVSS: 7.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jan 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

orval-labs orval orval_labs:orval (from the name)	before 7.20.0; from 8.0.0-rc.0, < 8.0.3	CNA record
orval orval orval:orval	from 6.0.0 before 7.20.0; from 8.0.0 before 8.0.3	NVD

References

References

https://github.com/orval-labs/orval/security/advisories/GHSA-f456-rf33-4626	x-refsource-confirm, vendor-advisory
https://github.com/orval-labs/orval/pull/2828	x-refsource-misc, issue-tracking, patch
https://github.com/orval-labs/orval/pull/2829	x-refsource-misc, issue-tracking, patch
https://github.com/orval-labs/orval/pull/2830	x-refsource-misc, issue-tracking, patch
https://github.com/orval-labs/orval/commit/44ca8c1f5f930a3e4cefb6b79b38bcde7f8532a5	x-refsource-misc, patch
https://github.com/orval-labs/orval/commit/6d8ece07ccb80693ad43edabccb3957aceadcd06	x-refsource-misc, patch
https://github.com/orval-labs/orval/commit/9b211cddc9f009f8a671e4ac5c6cb72cd8646b62	x-refsource-misc, patch
https://github.com/orval-labs/orval/releases/tag/v7.20.0	x-refsource-misc, product, release-notes
https://github.com/orval-labs/orval/releases/tag/v8.0.3	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.