cve-2026-58400

CRITICAL CVSS 9.1 nvd
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 `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.

Timeline
Published
2026-09-03
Last Modified
2026-09-09
CVSS Details
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
Affected Products

No product information available.

Weaknesses (CWE)
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H 2.3 6.0 security-advisories@github.com
NVD metadata
NVD status
Deferred
Source identifier
security-advisories@github.com
References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "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"
}
Enrichment data
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