EUVD Vulnerability Catalog
Actively Exploited (KEV)
EUVD-2026-70645
Severity: CRITICAL
Base Score: 9.1
CVSS Version: 3.1
Vulnerability 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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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Attack Vector (AV): Network
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Attack Complexity (AC): Low
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Privileges Required (PR): High
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User Interaction (UI): None
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Scope (S): Changed
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Confidentiality Impact (C): High
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Integrity Impact (I): High
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Availability Impact (A): High
Affected Vendors & Systems
Vendor
geonetwork
References & Advisory Links
- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r
- 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://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
GitHub_M
EPSS Probability
0
Known Aliases
CVE-2026-58400
Published On
2026-09-03
Last Updated
2026-09-03
Exploited Since
2026-09-02