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CVE

CVE-2026-58400

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

CVE-2026-58400

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

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 (FEATURESECUREPROCESSING) and without disabling Java extension functions (ALLOWEXTERNALFUNCTIONS). 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

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, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58400.json, https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r, https://nvd.nist.gov/vuln/detail/CVE-2026-58400

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.01187%
EPSS Percentile
0.66958%
Introduced Version
0
Fix Available
f91487a48ed51b6abc944e5a35ee3b147ccecdb6

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