cve-2026-58400
CRITICAL CVSS 9.1 nvdGeoNetwork 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.
- Published
- 2026-09-03
- Last Modified
- 2026-09-09
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- HIGH
No product information available.
| 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 status
- Deferred
- Source identifier
security-advisories@github.com
- https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17
- https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12
- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r
- https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html
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"
}