Home/CVE/GeoServer is an open source server that allows users to share and edit geospatial data. It is possible to bypass the def
CVE

CVE-2025-27505

GeoServer is an open source server that allows users to share and edit geospatial data. It is possible to bypass the def

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.

MEDIUM · CVSS 5.3 EPSS 0.00827
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-862Missing Authorization
▤

Affected Products & Versions

2
osgeo geoserver< 2.25.6
osgeo geoserver>= 2.26.0 and < 2.26.3
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.geoserver.web:gs-web-app MODERATE fixed in 2.26.3
Maven org.geoserver:gs-rest MODERATE fixed in 2.26.3
⚠

Public Exploits & PoCs

1
nucleiGeoServer - Missing Authorization on REST API Indexmedium
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jun 2025 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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 TrackingPatch
https://osgeo-org.atlassian.net/browse/GEOS-11776Permissions Required
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