Description
Wheels 4.0.0 through 4.1.2 exposes password-less development tools under /wheels/* to remote clients when enablePublicComponent=true, as it is by default in development. Before 4.1.2 these tools have no local-access restriction; in 4.1.2 the restriction trusts client-supplied headers without checking the connecting peer. Remote clients can obtain application settings, environment/datasource details and routes, and start test runs. Where application tests use the primary datasource, those runs can write to the real application database. The separately protected migrator and CLI endpoints are not affected. This is fixed in 4.2.0.
References1
Metrics
- CVSS 3.1
-
8.6
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - EPSS — exploit probability
- 0% percentile: 18 · as of 10 November 2026
- CWE
- CWE-863
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.