by Kastro
Paper/Archive/CVE-2026-62681

CVE-2026-62681

orval-labs orval — Orval: RCE via OpenAPI path -> unescaped request-URL template literal (backtick breakout)

EPSS 0.7%public exploitCVSS 9.3
critical.is priorityof 100
48
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 51.3.513 × 2010.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, an unescaped backtick in an OpenAPI path is emitted into request URL template literals generated for axios, fetch, react-query, and SWR clients without safe encoding. This permits attacker-controlled JavaScript to be evaluated when a generated request, URL-builder, or query-key function is called, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/route.ts and route generation consumers. This issue is fixed in version 8.21.0.

Affected

ProductAffectedFixed inSource
orval< 8.21.0–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/orval-labs/orval/security/advisories/GHSA-fg9p-mrxr-hvq7refgithub.com/orval-labs/orval/pull/3692refgithub.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6refgithub.com/orval-labs/orval/releases/tag/v8.21.0