What is CVE-2026-23947?

CVE-2026-23947 is a critical-severity vulnerability in Orval, classified under Command Injection. CVSS score: 9.8/10. Published 2026-01-20.

How severe is CVE-2026-23947?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Orval

CVE-2026-23947

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions prior to 7.19.0 until 8.0.2 are vulnerable to arbitrary code execution in environments consuming generated clients. This issu…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Orval
Orval-labs Orval — versions >= 8.0.0-rc.0, < 8.0.2, < 7.19.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-23947?: CVE-2026-23947 is a critical-severity vulnerability in Orval, classified under Command Injection. CVSS score: 9.8/10. Published 2026-01-20.
How severe is CVE-2026-23947?: Critical severity. CVSS v3 base score is 9.8 out of 10.