CVE-2025-27505
MediumExploitedGeoServer Missing Authorization on REST API Index
Published Jun 10, 2025 · Updated Aug 12, 2026 · Also known as GHSA-h86g-x8mm-78m5
Key Facts
Patch immediately- CVE-2025-27505 is a medium-severity vulnerability (CVSS 5.3 v3.1) affecting Geoserver (Osgeo), org.geoserver:gs-rest (maven), org.geoserver.web:gs-web-app (maven).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jul 21, 2025. No public exploit code is known.
- EPSS estimates a 1.2% probability of exploitation in the next 30 days.
- Fixed versions are available, including org.geoserver:gs-rest 2.25.6, org.geoserver:gs-rest 2.26.3, org.geoserver.web:gs-web-app 2.25.6.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (30-day exploit likelihood)
1.2%
Higher than 66.4% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
Get the full CVE-2025-27505 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jul 21, 2025 | n/a | Not reported |
| CIRCL KEV | Oct 27, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| GeoserverOsgeo | >= >= 2.26.0, < 2.26.3 | 2.25.6 |
| org.geoserver:gs-restmaven | >= 2.26.0 | 2.25.6 |
| org.geoserver.web:gs-web-appmaven | >= 2.26.0 | 2.25.6 |
Patched Releases
org.geoserver:gs-rest
2.25.6, 2.26.3
org.geoserver.web:gs-web-app
2.25.6, 2.26.3
Geoserver
2.25.6
Timeline
Publicly disclosed
Jun 10, 2025
Added to Industry KEV feed
Jul 21, 2025
Added to CIRCL KEV
Oct 27, 2025
Last updated
Aug 12, 2026
Weakness Type
- CWE-862 Missing Authorization
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27505.json
- advisoryhttps://github.com/geoserver/geoserver/security/advisories/GHSA-h86g-x8mm-78m5
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2025-27505
- patchhttps://github.com/geoserver/geoserver/pull/8170
FAQ
Common Questions.
GeoServer is an open source server that allows users to share and edit geospatial data.
Affected: Geoserver (Osgeo) versions >= >= 2.26.0, < 2.26.3; org.geoserver:gs-rest (maven) versions >= 2.26.0; org.geoserver.web:gs-web-app (maven) versions >= 2.26.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jul 21, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including org.geoserver:gs-rest 2.25.6, org.geoserver:gs-rest 2.26.3, org.geoserver.web:gs-web-app 2.25.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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