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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.

PUBLISHED Reserved 2026-04-26 | Published 2026-05-14 | Updated 2026-05-16 | Assigner GitHub_M




HIGH: 7.7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Problem types

CWE-306: Missing Authentication for Critical Function

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 6.3.21
affected

References

github.com/...vspace/security/advisories/GHSA-hqwm-7x7x-8379

cve.org (CVE-2026-42283)

nvd.nist.gov (CVE-2026-42283)

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