CVE-2026-58400GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter
Updated under an hour ago ()
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It affects geonetwork core-geonetwork. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94, CWE-470
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
geonetwork core-geonetwork geonetwork:core_geonetwork (from the name) | from 4.3.0, < 4.4.12; before 4.2.17 | CNA record |
References
- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3rx-refsource-confirm
- https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17x-refsource-misc
- https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12x-refsource-misc
- https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.htmlx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.