Description
GeoServer is an open source server that allows users to share and edit geospatial data. Malicious Jiffle scripts can be executed by GeoServer, either as a rendering transformation in WMS dynamic styles or as a WPS process, that can enter an infinite loop to trigger denial of service. This vulnerability is fixed in 2.27.0, 2.26.3, and 2.25.7. This vulnerability can be mitigated by disabling WMS dynamic styling and the Jiffle process.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/geoserver/geoserver/security/advisories/GHSA-gr67-pwcv-76gf
Patch x_refsource_misc
https://github.com/geosolutions-it/jai-ext/pull/307
Permissions Required x_refsource_misc
https://osgeo-org.atlassian.net/browse/GEOS-11778
Scores
CVSS v3
7.5
EPSS
0.0043
EPSS Percentile
34.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-835
Status
published
Products (4)
org.geoserver/gs-wms
2.26.0 - 2.26.3Maven
org.geoserver.extension/gs-wps-core
2.26.0 - 2.26.3Maven
org.geoserver.web/gs-web-app
2.26.0 - 2.26.3Maven
osgeo/geoserver
< 2.25.7
Published
Jun 10, 2025
Tracked Since
Feb 18, 2026