{"id":"CVE-2026-58400","summary":"GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter","details":"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\n`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.","aliases":["GHSA-x898-729x-cc3r"],"modified":"2026-09-06T03:30:14.308458323Z","published":"2026-09-03T17:06:17.827Z","database_specific":{"cwe_ids":["CWE-470","CWE-94"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58400.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17"},{"type":"WEB","url":"https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12"},{"type":"WEB","url":"https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58400.json"},{"type":"ADVISORY","url":"https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58400"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/geonetwork/core-geonetwork","events":[{"introduced":"0"},{"fixed":"45f1bcb4ec72f17d5990ffa55469b66a79dcbfc4"},{"fixed":"f91487a48ed51b6abc944e5a35ee3b147ccecdb6"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.3.0"},{"fixed":"4.4.12"},{"introduced":"0"},{"fixed":"4.2.17"}]}}],"versions":["4.2.16","4.2.15","4.4.10","4.2.14","4.4.9","4.4.8","4.2.13","4.4.7","4.2.11","4.4.6","4.2.10","4.4.5","4.4.4","4.2.9","4.4.3","4.2.8","4.4.2","4.4.1","4.2.7","4.4.0","4.2.6","4.2.5","4.2.4","4.2.3","4.2.2","4.2.1","4.2.0","4.0.6","4.0.5","4.0.4","4.0.3","4.0.2","4.0.1","4.0.0","4.0.0-alpha.2","4.0.0-alpha.1","3.4.2","3.4.1","3.4.0","3.2.0","3.0.0RC0","start-migration","2.6.4","2.6.3","2.6.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58400.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}]}