CVE-2026-55864High· 7.8▾ TwilightGeoNetwork 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 validati…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
— → 7.8
Last analysed / modified upstream
0.6%
GeoNetwork 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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
org.geonetwork-opensource:gn-web-app >= 4.4.0, <= 4.4.11org.geonetwork-opensource:gn-web-app >= 4.0.0, <= 4.2.16Patched in:
org.geonetwork-opensource:gn-web-app 4.4.12org.geonetwork-opensource:gn-web-app 4.2.17Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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