CVE-2025-58360 OSGeo GeoServer: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Jan 1, 2026
What to do
- Install OSGeo's security update for GeoServer. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- OSGeo GeoServer Improper Restriction of XML External Entity Reference Vulnerability
- Product
- OSGeo GeoServer
- CISA description
- OSGeo GeoServer contains an improper restriction of XML external entity reference vulnerability that occurs when the application accepts XML input through a specific endpoint /geoserver/wms operation GetMap and could allow an attacker to define external entities within the XML request.
- Type of flaw
- Web page flaw (CWE-611)
- Confirmed exploited
- Dec 11, 2025
- US federal patch deadline
- Jan 1, 2026
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Answering about CVE-2025-58360 ·
Questions about CVE-2025-58360
Is CVE-2025-58360 being exploited?
Yes. CISA added CVE-2025-58360 to its Known Exploited Vulnerabilities catalog on Dec 11, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2025-58360?
Install OSGeo's security update for GeoServer. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2025-58360?
Only if you use OSGeo GeoServer. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.