{"cve":"CVE-2026-42283","nvd":{"published":"2026-05-14T16:16:21.347","modified":"2026-06-17T10:47:37.850","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-200","CWE-306"],"references":["https://github.com/devspace-sh/devspace/security/advisories/GHSA-hqwm-7x7x-8379"],"products":["devspace:devspace"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-42283","score":0.00152,"percentile":0.04325,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hqwm-7x7x-8379","url":"https://osv.dev/vulnerability/GHSA-hqwm-7x7x-8379","summary":"DevSpace UI Server WebSocket CheckOrigin does not validate source","modified":"2026-06-25T23:11:34.563285589Z","packages":[{"ecosystem":"Go","name":"github.com/loft-sh/devspace","purl":"pkg:golang/github.com/loft-sh/devspace","ranges":[">=6.3.20 <6.3.21"],"fixed":["6.3.21"]}]},{"id":"GO-2026-5433","url":"https://osv.dev/vulnerability/GO-2026-5433","summary":"DevSpace UI Server WebSocket CheckOrigin does not validate source in github.com/loft-sh/devspace","modified":"2026-06-25T23:01:09.358359146Z","packages":[{"ecosystem":"Go","name":"github.com/loft-sh/devspace","purl":"pkg:golang/github.com/loft-sh/devspace","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}