CVE-2026-63219

highpriority · act · 90OT risk · criticalEU KEV · CNWEPSS 0.005 · 39 %ileDENL

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (39th) EPSS

CVSS 8.6 · high

Is it mine?

6 products

Check your exposure

Who says so?

2 sources

cert_bund · ncsc_nl

EU KEVflagged by CNWreported 2026-09-02patched 2026-07-08

Unauthenticated file upload via missing authorization on formatter upload endpoint.

EPSS · scored 2026-10-24

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · security-advisories@github.comexploitability 3.9 · impact 4

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N/E:Hsecondary · CVSS-BT (t0sche)

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USprimaryCWE-862US

affected products (6)

Products and version ranges known to be affected.

Open Source GeoNetwork <4.2.17all versionscert_bundDE
Open Source GeoNetwork <4.4.12all versionscert_bundDE
Open Source GeoNetwork< 4.2.17cert_bundDE
Open Source GeoNetwork< 4.4.12cert_bundDE
Open Source GeoNetwork≤ vers:unknown/*ncsc_nlNL
geonetwork core-geonetwork≤ vers:unknown/*ncsc_nlNL

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0343Kwetsbaarheden verholpen in GeoNetwork door OpenGeoNL2026-09-07csaf · ncsc_nlNL
OpenGeo heeft meerdere kwetsbaarheden verholpen in GeoNetwork, een open-source catalogusapplicatie, specifiek in versies 4.4.5 tot en met 4.4.11 en versies voorafgaand aan 4.4.12 en 4.2.17.
WID-SEC-W-2026-3174GeoNetwork: Schwachstelle ermöglicht Manipulation von DateienDeutsch2026-09-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in GeoNetwork ausnutzen, um Dateien zu manipulieren.

sources

Which sources assert this record, and when.

cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-09-03modified 2026-09-03

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+11432 more

references (5) nvd

External citations — patches, advisories, analysis.

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