high7.7
CVE-2026-42283
DevSpace is a client-only developer tool for cloud-native development with Kubernetes.
Impact
DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser to establish a cross-origin WebSocket connection to ws://127.0.0.1:8090. This vulnerability is fixed in 6.3.21.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/loft-sh/devspace | = 6.3.20 | 6.3.21 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Devspace | Devspace | Version 6.3.20 |