Description
orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing ${...} syntax, which are executed at module scope when the generated code is built or imported.
References7
- github.com/orval-labs/orval
- github.com/orval-labs/orval/blob/v8.28.1/packages/effect/src/in…
- github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee…
- github.com/orval-labs/orval/pull/3995
- github.com/orval-labs/orval/security/advisories/GHSA-q7f2-jg6j-…
- www.vulncheck.com/advisories/orval-orval-effect-8.14.0-through-…
- github.com/orval-labs/orval/security/advisories/GHSA-q7f2-jg6j-…
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
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 - EPSS — exploit probability
- 1% percentile: 56 · as of 9 November 2026
- CWE
- CWE-94
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.