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Vulnerability record · CVE-2026-58400 · published 3 September 2026

CVE-2026-58400: Code injection vulnerability

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.

9.1 CVSS 3.1 Critical EPSS 1.2% · top 33.4% CWE-94 · Code injectionCWE-470 · CWE-470 Deferred
9.1CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
9 Sep 2026Last modified by 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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-58400), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.