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CVE-2026-63219— Unauthenticated file upload via missing authorization on formatter upload endpoint

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 4.2.17之前版本和4.3.0至4.4.12之前版本存在授权问题漏洞，该漏洞源于通过文件上传创建formatter的API端点未受保护，允许上传外部不受控文件，可能导致未经身份验证的攻击者上传任意.xsl或.zip formatter文件，并写入任意文件到formatter目录，构成对服务器存储的未授权写入访问。

CVSS 8.6 · High EPSS 0.47% · P39

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-2026-63219

Vulnerability Information
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Vulnerability Title
Unauthenticated file upload via missing authorization on formatter upload endpoint
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 API endpoint for creating a new formatter via file upload is unprotected and allows the upload of external uncontrolled files. An unauthenticated attacker can upload arbitrary `.xsl` or `.zip` formatter files to the server. An unauthenticated attacker can write arbitrary files into the GeoNetwork formatter directory. On its own this constitutes unauthorized write access to server storage. 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:N/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GeoNetwork core-geonetwork 授权问题漏洞
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 4.2.17之前版本和4.3.0至4.4.12之前版本存在授权问题漏洞，该漏洞源于通过文件上传创建formatter的API端点未受保护，允许上传外部不受控文件，可能导致未经身份验证的攻击者上传任意.xsl或.zip formatter文件，并写入任意文件到formatter目录，构成对服务器存储的未授权写入访问。
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-2026-63219

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III. Intelligence Information for CVE-2026-63219

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Patches & Fixes for CVE-2026-63219 (1)

Vendor Advisories for CVE-2026-63219 (1)

News Coverage for CVE-2026-63219 (1)

Vendor Pages for CVE-2026-63219 (2)

IV. Related Vulnerabilities

Same product: core-geonetwork
Same vendor: geonetwork
Same weakness: CWE-862

V. Comments for CVE-2026-63219

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