{
  "cvss": 9.1,
  "datePublished": "2026-09-03T18:17:22.827",
  "dateUpdated": "2026-09-09T21:09:13.080",
  "description": "GeoNetwork is a catalog application to manage spatially referenced resources. Prior to versions 4.4.12 and 4.2.17, the Saxon XSLT processor used to render formatters is configured without secure processing (`FEATURE_SECURE_PROCESSING`) and without disabling Java extension functions (`ALLOW_EXTERNAL_FUNCTIONS`). Any stylesheet loaded by GeoNetwork can therefore invoke\n`java.lang.Runtime.exec()` or `java.lang.ProcessBuilder` directly, achieving arbitrary command execution as the GeoNetwork process user. A user with sufficient privileges to upload a formatter can deliver a `.xsl` file containing Java extension call that execute arbitrary OS commands with the privileges of the GeoNetwork process. The issue is patched in GeoNetwork versions 4.4.12 and 4.2.17.",
  "id": "CVE-2026-58400",
  "raw": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "core-geonetwork",
            "vendor": "geonetwork",
            "versions": [
              {
                "status": "affected",
                "version": ">= 4.3.0, < 4.4.12"
              },
              {
                "status": "affected",
                "version": "< 4.2.17"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "GeoNetwork is a catalog application to manage spatially referenced resources. Prior to versions 4.4.12 and 4.2.17, the Saxon XSLT processor used to render formatters is configured without secure processing (`FEATURE_SECURE_PROCESSING`) and without disabling Java extension functions (`ALLOW_EXTERNAL_FUNCTIONS`). Any stylesheet loaded by GeoNetwork can therefore invoke\n`java.lang.Runtime.exec()` or `java.lang.ProcessBuilder` directly, achieving arbitrary command execution as the GeoNetwork process user. A user with sufficient privileges to upload a formatter can deliver a `.xsl` file containing Java extension call that execute arbitrary OS commands with the privileges of the GeoNetwork process. The issue is patched in GeoNetwork versions 4.4.12 and 4.2.17."
      }
    ],
    "id": "CVE-2026-58400",
    "lastModified": "2026-09-09T21:09:13.080",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 6.0,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-58400",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-03T17:49:43.605439Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-03T18:17:22.827",
    "references": [
      {
        "source": "security-advisories@github.com",
        "url": "https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          },
          {
            "lang": "en",
            "value": "CWE-470"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "severity": "CRITICAL",
  "source": "nvd",
  "title": "GeoNetwork is a catalog application to manage spatially referenced resources"
}