Vulnerability · Published Sep 23, 2026 · Assigned by VulnCheck
CVE-2026-96754orval @orval/hono before 8.29.0 Code Injection via OpenAPI Path
Critical 9.8
In plain English
A critical-severity code injection in orval from orval-labs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 54.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| orval-labs | orval | 0 – before 8.29.0 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-g4mf-q5hw-f9j9) vendor-advisory
- https://github.com/orval-labs/orval/pull/4006 patch, issue-tracking
- https://github.com/orval-labs/orval/commit/155a5b7a38ff6886020cbc4c292db57c2793e6b6 patch
- https://github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee2c4c69d8dc23 patch
- https://github.com/orval-labs/orval/blob/v8.28.1/packages/hono/src/index.ts#L169-L175 technical-description
- https://github.com/orval-labs/orval product
- VulnCheck Advisory: orval @orval/hono before 8.29.0 Code Injection via OpenAPI Path third-party-advisory