EUVD-2026-78675
GHSA-5hx7-j24v-rffj
Severity by source
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
Unauthenticated network endpoint with no complexity; scope changes to internal network systems; confidentiality high from XML response exfiltration, integrity low from potential internal service abuse via blind requests.
Primary rating from Vendor (https://github.com/geonetwork/core-geonetwork).
CVSS VectorVendor: https://github.com/geonetwork/core-geonetwork
Lifecycle Timeline
7DescriptionCVE.org
Summary
An unauthenticated server-side request forgery vulnerability lets any anonymous user make the GeoNetwork server issue arbitrary outbound HTTP requests. This gives an external attacker a position inside the server's network, making it possible to make internal requests no matter if the response is XML-type or not.
The SLD tooling endpoint POST /api/tools/ogc/sld takes a caller-supplied WMS server URL and performs a server-side HTTP GET to it, with no validation. The fetched body can also be stored and downloaded if the output of the outbound request is in XML format, making the SSRF non-blind.
Impact
Any unauthenticated user can make the server send arbitrary HTTP requests to internal hosts it would never expose publicly, and read the responses back if the request responses are XML. This enables internal data disclosure, for example, configuration files that return as XML, authorization bypass, and reconnaissance of the internal network all from an anonymous position.
Resolution
Patched releases:
- 4.4.12
- 4.2.17
Resources
- https://github.com/geonetwork/core-geonetwork/pull/9343
AnalysisAI
Unauthenticated server-side request forgery in GeoNetwork OpenSource lets any anonymous user force the server to issue arbitrary outbound HTTP GET requests through the SLD tooling endpoint POST /api/tools/ogc/sld. Because the caller-supplied WMS server URL is fetched without validation and the response body is returned and stored when it is XML, the SSRF is non-blind — attackers can read back internal XML resources such as configuration files, bypass authorization boundaries, and map the internal network from an anonymous position. …
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Recommended ActionAI
Within 24 hours, inventory all GeoNetwork deployments and immediately segregate any instances running versions 4.0.0-4.2.16 or 4.4.0-4.4.11 from external networks; if operationally infeasible, restrict access to the /api/tools/ogc/sld endpoint using firewall or WAF rules as an interim control. …
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
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