CVE-2025-58175

GeoServer has a Server-Side Request Forgery (SSRF) Vulnerability in its XML Entity Resolution

State: Published
Severity: 6.5 Medium
Published: Jun 18, 2026
Updated: Jun 18, 2026
Reserved: Aug 27, 2025

Description

GeoServer is an open source server that allows users to share and edit geospatial data. Prior to versions 2.26.4 and 2.27.3, a GeoServer that uses `ENTITY_RESOLUTION_ALLOWLIST` may allow attacker to perform unauthenticated Server-Side Request Forgery (SSRF). This vulnerability requires that GeoServer is set up to use a proxy base URL and the `ENTITY_RESOLUTION_ALLOWLIST` (default since 2.25.0). Versions 2.26.4 and 2.27.3 contain a fix. GeoServer installations are only affected by this vulnerability if they use a proxy base URL that does not contain a URL path or end with a slash. If the proxy base URL does not contain a path, adding a slash to the end of the URL will mitigate this vulnerability.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-611 Improper Restriction of XML External Entity Reference
CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
org.geoserver.web:gs-web-appgeoserver	< 2.26.4Affected >= 2.27.0, < 2.27.3Affected
org.geoserver:gs-maingeoserver	< 2.26.4Affected >= 2.27.0, < 2.27.3Affected

References

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