CVE-2023-43795: WPS Server Side Request Forgery in GeoServer

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 69.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-10-25 · updated 2026-06-17
Weakness: CWE-918

Description

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The OGC Web Processing Service (WPS) specification is designed to process information from any server using GET and POST requests. This presents the opportunity for Server Side Request Forgery. This vulnerability has been patched in version 2.22.5 and 2.23.2.

Affected products

geoserver org.geoserver.extension:gs-db2: before 2.22.5; from 2.23.0 before 2.23.2 — fixed in 2.22.5, 2.23.2

How to fix

Upgrade to a fixed version: geoserver org.geoserver.extension:gs-db2 2.22.5, 2.23.2. Check the vendor advisory for mitigations.

References

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