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CVE-2026-58400— GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter

Quick assessment

Affected
geonetwork core-geonetwork
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GeoNetwork core-geonetwork是GeoNetwork社区的一款地理空间元数据目录管理软件。 GeoNetwork core-geonetwork 4.4.12之前版本和4.2.17之前版本存在代码注入漏洞，该漏洞源于Saxon XSLT处理器配置不安全，未启用安全处理且未禁用Java扩展函数，可能导致具有上传格式化程序权限的用户通过恶意XSL文件执行任意OS命令。

CVSS 9.1 · Critical EPSS 1.19% · P68

Affected Version Matrix 2

VendorProduct Version RangeStatus
geonetwork core-geonetwork >= 4.3.0, < 4.4.12 affected
< 4.2.17 affected
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I. Basic Information for CVE-2026-58400

Vulnerability Information
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Vulnerability Title
GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
GeoNetwork core-geonetwork 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GeoNetwork core-geonetwork是GeoNetwork社区的一款地理空间元数据目录管理软件。 GeoNetwork core-geonetwork 4.4.12之前版本和4.2.17之前版本存在代码注入漏洞，该漏洞源于Saxon XSLT处理器配置不安全，未启用安全处理且未禁用Java扩展函数，可能导致具有上传格式化程序权限的用户通过恶意XSL文件执行任意OS命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
geonetwork core-geonetwork >= 4.3.0, < 4.4.12 -

II. Public POCs for CVE-2026-58400

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III. Intelligence Information for CVE-2026-58400

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Vendor Advisories for CVE-2026-58400 (1)

News Coverage for CVE-2026-58400 (1)

Vendor Pages for CVE-2026-58400 (2)

IV. Related Vulnerabilities

Same product: core-geonetwork
Same vendor: geonetwork
Same weakness: CWE-94