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Fencer Vulns
critical 9.9

CVE-2025-30220 in the critical feed json

GeoTools, GeoServer, and GeoNetwork XML External Entity (XXE) Processing Vulnerability in XSD schema handling

published 2025-06-10 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-17683 , GHSA-jj54-8f66-c5pc

cvss
9.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
43.6%
EPSS 43.6% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known, plus a Nuclei check

Summary

GeoServer is an open source server that allows users to share and edit geospatial data. GeoTools Schema class use of Eclipse XSD library to represent schema data structure is vulnerable to XML External Entity (XXE) exploit. This impacts whoever exposes XML processing with gt-xsd-core involved in parsing, when the documents carry a reference to an external XML schema. The gt-xsd-core Schemas class is not using the EntityResolver provided by the ParserHandler (if any was configured). This also impacts users of gt-wfs-ng DataStore where the ENTITY_RESOLVER connection parameter was not being used as intended. This vulnerability is fixed in GeoTools 33.1, 32.3, 31.7, and 28.6.1, GeoServer 2.27.1, 2.26.3, and 2.25.7, and GeoNetwork 4.4.8 and 4.2.13.

Patch / fix

  • maven org.geoserver.web:gs-web-app 2.25.7, 2.26.3, 2.27.1
  • maven org.geoserver:gs-wfs 2.25.7, 2.26.3, 2.27.1
  • geoserver geoserver 2.25.7, 2.26.3, 2.27.1
  • org.geoserver gs-main 2.25.7, 2.26.3, 2.27.1
  • osgeo geoserver 2.25.7, 2.26.3, 2.27.1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

43.62% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template GeoServer WFS - XXE Processing Vulnerability nuclei detection template
  • github.com https://github.com/geoserver/geoserver/security/advisories/GHSA-jj54-8f66-c5pc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
GitHub 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.geoserver.web:gs-web-app
>=2.27.0, <2.27.1
>=2.26.0, <2.26.3
<2.25.7
2.27.1
2.26.3
2.25.7
maven org.geoserver:gs-wfs
>=2.27.0, <2.27.1
>=2.26.0, <2.26.3
<2.25.7
2.27.1
2.26.3
2.25.7

Affected products

  • geoserver geoserver

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.