{"id":"CVE-2026-58400","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-58400","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…","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.","published":"2026-09-03T18:17:22.827","modified":"2026-09-03T18:17:22.827","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"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://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r"},{"type":"WEB","url":"https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-03T18:17:22.827"}}