{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.9.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "bfbd50a13179fb3caed27655564a9202c2e86c72"
            }
          ],
          "repo": "https://github.com/eclipse-lemminx/lemminx",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "XML Language Server (aka lsp4xml) before 0.9.1, as used in Red Hat XML Language Support (aka vscode-xml) before 0.9.1 for Visual Studio and other products, allows XXE via a crafted XML document, with resultant SSRF (as well as SMB connection initiation that can lead to NetNTLM challenge/response capture for password cracking). This occurs in extensions/contentmodel/participants/diagnostics/LSPXMLParserConfiguration.java.",
  "id": "CVE-2019-18213",
  "modified": "2026-04-01T23:09:51.699755831Z",
  "published": "2019-10-23T22:15:10.943Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/angelozerr/lsp4xml/"
    },
    {
      "type": "ADVISORY",
      "url": "https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others"
    },
    {
      "type": "FIX",
      "url": "https://github.com/angelozerr/lsp4xml/pull/566"
    },
    {
      "type": "FIX",
      "url": "https://github.com/redhat-developer/vscode-xml/"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}