> CVE-2026-55864 [HIGH]

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PUBLISHED
2026-09-15 16:17
MODIFIED
2026-09-15 16:17
CVSS_SCORE V3
7.8
EPSS (Prob. Exploit)
0.59%
Top 52.6%
DATA SOURCES:
NVD đź”— 2026-09-15 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-10-08 OSV đź”— 2026-09-22

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
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

> MÉTRIQUES CVSS DÉTAILLÉES

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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-918: Server-Side Request Forgery (SSRF) - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

> GITHUB SECURITY ADVISORY

GHSA-5hx7-j24v-rffj HIGH

GeoNetwork Web Module: Unauthenticaded Server-Side Request Forgery in SLD Tool

AFFECTED PACKAGES:
MAVEN / org.geonetwork-opensource:gn-web-app
>= 4.0.0, <= 4.2.16
Fixed in: 4.2.17
MAVEN / org.geonetwork-opensource:gn-web-app
>= 4.4.0, <= 4.4.11
Fixed in: 4.4.12

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

GeoNetwork: Unauthenticaded Server-Side Request Forgery in SLD Tool

AFFECTED PACKAGES:
Unknown / Unknown
34 versions affected
ALIASES:
GHSA-5hx7-j24v-rffj

> HISTORIQUE DES MODIFICATIONS

Première apparition
15/09/2026 16:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-918: Server-Side Request Forgery (SSRF) - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure th...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/geonetwork/core-geonetwork/commit/17fdae28a5a51996bf5ff7f7e82...
https://github.com/geonetwork/core-geonetwork/commit/a80d535c842e6af589d0bac37e7...
https://github.com/geonetwork/core-geonetwork/pull/9343
https://github.com/geonetwork/core-geonetwork/pull/9344
https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.17
https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.12
https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-5hx7-j24v...
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