Background exploitation KEV catalog No authentication

CVE-2025-58360

OSGeo GeoServer Improper Restriction of XML External Entity Reference Vulnerability

CheckOps priority index

7.5/10 Patch within 7 days

Severity8.2

Probability6.1

Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 61.2% higher than 99.2% of CVEs

CVSS 3.1 8.2 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 327 days 11 Dec 2025

CISA due date 01 Jan 2026 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)11 Dec 2025
Exploited in EUVD (ENISA)11 Dec 2025
Used by ransomwareno
EPSS above 10 %61.2%
No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before 2.26.2 and before 2.25.6, an XML External Entity (XXE) vulnerability was identified. The application accepts XML input through a specific endpoint /geoserver/wms operation GetMap. However, this input is not sufficiently sanitized or restricted, allowing an attacker to define external entities within the XML request. This issue has been patched in GeoServer 2.25.6, GeoServer 2.26.3, and GeoServer 2.27.0.

Affected products

geoserverGeoServer

Affected versions

2.26.0, < 2.26.2
< 2.25.6

Weaknesses (CWE)

CWE-611

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

25 Nov 2025
Published
11 Dec 2025
Exploitation reported (ENISA)
11 Dec 2025
Added to the KEV catalog
01 Jan 2026
CISA remediation due date
26 Oct 2026
EPSS peak: 61.2%

References

Other exploited vulnerabilities from the same vendor

CVE-2024-36401OSGeo GeoServer GeoTools Eval Injection Vulnerability
9.3 · Background exploitation
CVE-2022-24816OSGeo GeoServer JAI-EXT Code Injection Vulnerability
9.4 · Background exploitation