CASCACascade Atlas

Evidence dossier

CVE-2025-58360

GeoServer is vulnerable to an Unauthenticated XML External Entities (XXE) attack via WMS GetMap feature

76.9–95.9Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Nov 25, 2025
Updated
Feb 26, 2026
Evidence coverage
72%
CISA KEVCatalog member

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

FIRST EPSS67.36%

2026-07-18 · v2026.06.15 · percentile 99.2%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

GitHub_Moriginal assertion
container

GeoServer is vulnerable to an Unauthenticated XML External Entities (XXE) attack via WMS GetMap feature

CISA KEVoriginal assertion
observed_exploitation

OSGeo GeoServer Improper Restriction of XML External Entity Reference Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.673570000000; percentile 0.992280000000

Applicability

Cited product scope

Trace impact →
geoservergeoserver
[{"status": "affected", "version": ">= 2.26.0, < 2.26.2"}, {"status": "affected", "version": "< 2.25.6"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*; end excluding 2.25.6supported
Unknown vendorUnknown product
cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*; start including 2.26.0; end excluding 2.26.2supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2
security-advisories@github.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
8.2
GitHub_MCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.