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HIGH severity

GeoNetwork affected by XML External Entity (XXE) processing vulnerability in WFS indexing REST API endpointGHSA-2p76-gc46-5fvc

HIGHFix: geonetwork/core-geonetwork#8757

GHSA-2p76-gc46-5fvc is a high-severity (CVSS 8.2) vulnerability in org.geonetwork-opensource:gn-web-app. A fix is available for org.geonetwork-opensource:gn-web-app — see the affected versions and patch details below.

Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Feb 4, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

4 pkgs affected
☕org.geonetwork-opensource:gn-web-app☕org.geonetwork-opensource:gn-web-app☕org.geonetwork-opensource:gn-wfsfeature-harvester☕org.geonetwork-opensource:gn-wfsfeature-harvester

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Impact

GeoNetwork WFS Index functionality is affected by GeoTools XML External Entity (XXE) vulnerability during schema validation.

This vulnerability is particularly severe as the REST API endpoint was not secured, potentially allowing unauthenticated attackers to read sensitive files

Patches

GeoNetwork 4.4.8 / 4.2.13.

Workarounds

Remove the gn-wfsfeature-harvester and gn-camelPeriodicProducer jars, disabling the WFS Index functionality.

References

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.geonetwork-opensource:gn-web-app≥ 4.4.0&&< 4.4.84.4.8org.geonetwork-opensource:gn-web-app:4.4.8
☕Mavenorg.geonetwork-opensource:gn-web-app≥ 4.2.0&&< 4.2.134.2.13org.geonetwork-opensource:gn-web-app:4.2.13
☕Mavenorg.geonetwork-opensource:gn-wfsfeature-harvester≥ 4.4.0&&< 4.4.84.4.8org.geonetwork-opensource:gn-wfsfeature-harvester:4.4.8
☕Mavenorg.geonetwork-opensource:gn-wfsfeature-harvester≥ 4.2.0&&< 4.2.134.2.13org.geonetwork-opensource:gn-wfsfeature-harvester:4.2.13

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.geonetwork-opensource:gn-web-app, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.geonetwork-opensource:gn-web-app to 4.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2p76-gc46-5fvc is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact GeoNetwork WFS Index functionality is affected by GeoTools XML External Entity (XXE) vulnerability during schema validation. This vulnerability is particularly severe as the REST API endpoint was not secured, potentially allowing unauthenticated attackers to read sensitive files ### Patches GeoNetwork 4.4.8 / 4.2.13. ### Workarounds Remove the ``gn-wfsfeature-harvester`` and ``gn-camelPeriodicProducer`` jars, disabling the WFS Index functionality. ### References - [GHSA-826p-4gcg-35vw](https://github.com/geotools/geotools/security/advisories/GHSA-826p-4gcg-35vw) - https:
O3 Security · Impact-Aware SCA

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GeoNetwork affected by XML External Entity (XXE)…