GeoNetwork: Unauthenticaded Server-Side Request Forgery in SLD Tool

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55864
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-15 16:17:16 UTC
Updated2026-09-16 16:17:10 UTC
DescriptionGeoNetwork is a catalog application to manage spatially referenced resources. Prior to 4.2.17 and 4.4.12, POST /api/tools/ogc/sld accepted a caller-supplied WMS server URL and performed a server-side HTTP GET without destination validation. An anonymous attacker could make the GeoNetwork server send requests to internal hosts that are not publicly reachable. When the outbound response was XML, the endpoint could store and return the fetched body, making the request forgery non-blind and enabling internal data disclosure, authorization bypass, and network reconnaissance. This issue is fixed in versions 4.2.17 and 4.4.12.

Risk And Classification

Primary CVSS: v4.0 7.8 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.005870000 probability, percentile 0.464950000 (date 2026-09-16)

Problem Types: CWE-918 | CWE-918 CWE-918: Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/C...
4.0CNADECLARED7.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
None
Sub Conf.
High
Sub Integrity
Low
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Geonetwork Core-geonetwork affected >= 4.0.0, < 4.2.17 Not specified
CNA Geonetwork Core-geonetwork affected >= 4.4.0, < 4.4.12 Not specified

References

ReferenceSourceLinkTags
github.com/geonetwork/core-geonetwork/pull/9344 [email protected] github.com
github.com/geonetwork/core-geonetwork/commit/17fdae28a5a51996bf5ff7f7e82... [email protected] github.com
github.com/geonetwork/core-geonetwork/commit/a80d535c842e6af589d0bac37e7... [email protected] github.com
github.com/geonetwork/core-geonetwork/releases/tag/4.2.17 [email protected] github.com
github.com/geonetwork/core-geonetwork/releases/tag/4.4.12 [email protected] github.com
github.com/geonetwork/core-geonetwork/security/advisories/GHSA-5hx7-j24v... [email protected] github.com
github.com/geonetwork/core-geonetwork/pull/9343 [email protected] github.com
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