CVE-2025-27505

GeoServer is an open source server that allows users to share and edit geospatial data. It is possible to bypass the default REST API security and access the index page. The REST API security handles rest and its subpaths but not rest with an extension (e.g., rest.html). The REST API index can disclose whether certain extensions are installed. This vulnerability is fixed in 2.26.3 and 2.25.6. As a workaround, in ${GEOSERVER_DATA_DIR}/security/config.xml, change the paths for the rest filter to /rest.*,/rest/** and change the paths for the gwc filter to /gwc/rest.*,/gwc/rest/** and restart GeoServer.

• CWE-862

• https://github.com/geoserver/geoserver/pull/8170Patch
• https://github.com/geoserver/geoserver/security/advisories/GHSA-h86g-x8mm-78m5Third Party Advisory
• https://osgeo-org.atlassian.net/browse/GEOS-11664Issue Tracking, Patch
• https://osgeo-org.atlassian.net/browse/GEOS-11776Permissions Required

Published

Jun 10, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

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