CVE-2026-58400 (GCVE-0-2026-58400)

Vulnerability from cvelistv5 – Published: 2026-09-03 17:06 – Updated: 2026-09-04 13:42
VLAI ENISA
Title
GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter
Summary
GeoNetwork is a catalog application to manage spatially referenced resources. Prior to versions 4.4.12 and 4.2.17, the Saxon XSLT processor used to render formatters is configured without secure processing (`FEATURE_SECURE_PROCESSING`) and without disabling Java extension functions (`ALLOW_EXTERNAL_FUNCTIONS`). Any stylesheet loaded by GeoNetwork can therefore invoke `java.lang.Runtime.exec()` or `java.lang.ProcessBuilder` directly, achieving arbitrary command execution as the GeoNetwork process user. A user with sufficient privileges to upload a formatter can deliver a `.xsl` file containing Java extension call that execute arbitrary OS commands with the privileges of the GeoNetwork process. The issue is patched in GeoNetwork versions 4.4.12 and 4.2.17.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 17:49 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Assigner
References
Impacted products
Vendor Product Version CPE status
geonetwork core-geonetwork Affected: >= 4.3.0, < 4.4.12
Affected: < 4.2.17
guessed Create a notification for this product.
ENISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6cbe7f45-6ec1-4ccf-a3fb-f7c2c79d294c

Vulnerability ID: CVE-2026-58400

Status: Confirmed

Status Updated: 2026-09-02 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-02
Asserted: 2026-09-02
Scope
Notes: Affected: geonetwork / core-geonetwork | Description: Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter. | Patched since: 2026/07/08 | Exploitation type: unknown | CWEs: CWE-94, CWE-470 | Origin source: CNW | Notes: https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r
Evidence

Type: Csirt Report

Signal: Successful Exploitation

Confidence: 75%

Source: enisa-cnw-kev

Details
Cwes CWE-94 CWE-470
Euvd EUVD-2026-70645
Notes https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r
Catalog ENISA / EU CSIRTs Network (CNW) KEV JSON
Product core-geonetwork
Datereported 2026/09/02
Originsource CNW
Patchedsince 2026/07/08
Vendorproject geonetwork
Exploitationtype unknown
Vulnerabilityname
Threatactorsexploiting
References
Created: 2026-09-04 07:00 UTC | Updated: 2026-09-04 07:00 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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