orval versions before 8.29.0 contain a code injection vulnerability in the @orval/hono generator that fails to escape OpenAPI path values in single-quoted route literals. Attackers can craft an OpenAPI document with an apostrophe in a static path segment to inject arbitrary JavaScript code that executes when the generated TypeScript module is imported.
https://www.vulncheck.com/advisories/orval-orval-hono-before-8.29.0-code-injection-via-openapi-path
https://github.com/orval-labs/orval/security/advisories/GHSA-g4mf-q5hw-f9j9
https://github.com/orval-labs/orval/pull/4006
https://github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee2c4c69d8dc23
https://github.com/orval-labs/orval/commit/155a5b7a38ff6886020cbc4c292db57c2793e6b6
https://github.com/orval-labs/orval/blob/v8.28.1/packages/hono/src/index.ts#L169-L175
Published: 2026-09-23
Updated: 2026-09-29
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 9.3
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
Severity: Critical
EPSS: 0.00427