OSGeo GeoServer Improper Restriction of XML External Entity Reference Vulnerability

CISA Description

OSGeo GeoServer contains an improper restriction of XML external entity reference vulnerability that occurs when the application accepts XML input through a specific endpoint /geoserver/wms operation GetMap and could allow an attacker to define external entities within the XML request.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

This vulnerability affects an open-source component, third-party library, or a protocol used by different products. For more information, please see: https://github.com/geoserver/geoserver/security/advisories/GHSA-fjf5-xgmq-5525 ; https://osgeo-org.atlassian.net/browse/GEOS-11922 ; https://nvd.nist.gov/vuln/detail/CVE-2025-58360