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CVE-2026-63219

8.6 · HIGH

GeoNetwork is a catalog application to manage spatially referenced resources.

Published Sep 3, 2026CWE-862EPSS 0.47%

Overview

CVE-2026-63219 is a high-severity vulnerability. It was published on September 3, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdocs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17Refdocs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12GitHubgithub.com/geonetwork/core-geonetwork/pull/9346GitHubgithub.com/geonetwork/core-geonetwork/security/advisories/GHSA-mh22-prqr-vf42Refthehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html

How CyberStrike helps

Frequently asked questions

What is CVE-2026-63219?

CVE-2026-63219 is a high-severity vulnerability. It was published on September 3, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2026-63219?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-63219?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-63219?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-63219 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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