GeoNetwork is a catalog application to manage spatially referenced resources. In versions prior to 4.2.10 and 4.4.5, the search end-point response headers contain information about Elasticsearch software in use. This information is valuable from a security point of view because it allows software used by the server to be easily identified. GeoNetwork 4.4.5 and 4.2.10 fix this issue. No known workarounds are available.

A privileged attacker in GeoNetwork before 3.12.0 and 4.x before 4.0.4 can use the directory harvester before-script to execute arbitrary OS commands remotely on the hosting infrastructure. A User Administrator or Administrator account is required to perform this. This occurs in the runBeforeScript method in harvesters/src/main/java/org/fao/geonet/kernel/harvest/harvester/localfilesystem/LocalFilesystemHarvester.java. The earliest affected version is 3.4.0.