geonetwork core-geonetwork
GeoNetwork is a catalog application to manage spatially referenced resources. Prior to versions 4.4.12 and 4.2.17, the API endpoint for creating a new formatter via file upload is unprotected and allows the upload of external uncontrolled…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 2 / 5
- KEV catalog (CISA)no
- Exploited in EUVD (ENISA)02 Sept 2026
- Used by ransomwareno
- EPSS above 10 %0.47%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
GeoNetwork is a catalog application to manage spatially referenced resources. Prior to versions 4.4.12 and 4.2.17, the API endpoint for creating a new formatter via file upload is unprotected and allows the upload of external uncontrolled files. An unauthenticated attacker can upload arbitrary `.xsl` or `.zip` formatter files to the server. An unauthenticated attacker can write arbitrary files into the GeoNetwork formatter directory. On its own this constitutes unauthorized write access to server storage. The issue is patched in GeoNetwork versions 4.4.12 and 4.2.17.
Affected products
- 4.3.0, < 4.4.12
- < 4.2.17
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
-
Exploitation reported (ENISA)
-
Published
References
Other exploited vulnerabilities from the same vendor
- CVE-2026-58400geonetwork core-geonetwork4.3 · Actively exploited