{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:devspace:devspace:6.3.20:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.3.21"
              },
              {
                "introduced": "6.3.20"
              },
              {
                "last_affected": "6.3.20"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "a91772ba91f0b8c8cac08e83580a8202dfe00746"
            },
            {
              "fixed": "7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5"
            }
          ],
          "repo": "https://github.com/devspace-sh/devspace",
          "type": "GIT"
        }
      ],
      "versions": [
        "6.3.20"
      ]
    }
  ],
  "aliases": [
    "GHSA-hqwm-7x7x-8379"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200",
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42283.json"
  },
  "details": "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.",
  "id": "CVE-2026-42283",
  "modified": "2026-07-15T01:49:10.761595489Z",
  "published": "2026-05-14T15:44:22.499Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42283.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/devspace-sh/devspace/security/advisories/GHSA-hqwm-7x7x-8379"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42283"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "DevSpace UI Server WebSocket CheckOrigin does not validate source"
}