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CVE-2026-58400

GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter

Published: Sep 3, 2026Updated: Sep 4, 2026 Sources: CVE List NVDCWE-94
9.1CRITICAL
NVD MITRE
EPSS Score
1.2%
Top 34.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94CWE-470

Affected Products

geonetwork
oss-project
core-geonetworkOn-prem
Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r
github.com
https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17
docs.geonetwork-opensource.org
https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12
docs.geonetwork-opensource.org
and 1 more references View all →
News mentions
2

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