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.
CVSS Score
HIGH
Related Weaknesses (CWE)
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://github.com/geonetwork/core-geonetwork/pull/9346
- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-mh22-prqr
- https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html
FAQ
What is CVE-2026-63219?
CVE-2026-63219 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 allo...
How severe is CVE-2026-63219?
CVE-2026-63219 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63219?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.