High severity7.7GHSA Advisory· Published May 14, 2026· Updated May 21, 2026
CVE-2026-42283
CVE-2026-42283
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/loft-sh/devspaceGo | >= 6.3.20, < 6.3.21 | 6.3.21 |
Affected products
3- Range: = 6.3.20
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-hqwm-7x7x-8379ghsaADVISORY
- github.com/devspace-sh/devspace/security/advisories/GHSA-hqwm-7x7x-8379nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-42283ghsaADVISORY
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