CVE-2025-27505 GeoServer Missing Authorization on REST API Index
Attackers can bypass REST API security to access the index page and disclose installed extensions in GeoServer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-27505?
CVE-2025-27505 is a medium-severity missing authorization vulnerability in geoserver, published on 10 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2025-27505?
8 open source packages ship an affected version, including org.geoserver.web:gs-web-app and org.geoserver:gs-rest. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.geoserver.web:gs-web-app Maven | All versions | 2.25.6 |
org.geoserver.web:gs-web-app Maven | All versions | 2.25.6 |
org.geoserver.web:gs-web-app Maven | From 2.26.0 | 2.26.3 |
org.geoserver.web:gs-web-app Maven | From 2.26.0 | 2.26.3 |
org.geoserver:gs-rest Maven | All versions | 2.25.6 |
org.geoserver:gs-rest Maven | All versions | 2.25.6 |
2 more packages
org.geoserver:gs-rest Maven | From 2.26.0 | 2.26.3 |
org.geoserver:gs-rest Maven | From 2.26.0 | 2.26.3 |
Products include Osgeo Geoserver.
How do I fix CVE-2025-27505?
Upgrade org.geoserver.web:gs-web-app to a fixed version for your release line: 2.25.6 or 2.26.3.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-27505 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-27505 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in geoserver
- CVE-2023-25157 Unfiltered SQL Injection Vulnerabilities in Geoserver
- CVE-2024-34711 GeoServer has improper ENTITY_RESOLUTION_ALLOWLIST URI validation in XML Processing (SSRF)
- CVE-2023-41339 Unsecured WMS dynamic styling sld=<url> parameter affords blind unauthenticated SSRF in GeoServer
- CVE-2023-43795 WPS Server Side Request Forgery in GeoServer
- CVE-2024-29198 GeoServer Vulnerable to Unauthenticated SSRF via TestWfsPost
Sources
Also known as GHSA-h86g-x8mm-78m5.