{"cvss":9.1,"datePublished":"2026-09-03T18:17:22.827","dateUpdated":"2026-09-09T21:09:13.080","description":"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.","id":"CVE-2026-58400","raw":{"affected":[{"affectedData":[{"product":"core-geonetwork","vendor":"geonetwork","versions":[{"status":"affected","version":">= 4.3.0, < 4.4.12"},{"status":"affected","version":"< 4.2.17"}]}],"source":"security-advisories@github.com"}],"cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"id":"CVE-2026-58400","lastModified":"2026-09-09T21:09:13.080","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.3,"impactScore":6.0,"source":"security-advisories@github.com","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-58400","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","timestamp":"2026-09-03T17:49:43.605439Z","version":"2.0.3"}}]},"published":"2026-09-03T18:17:22.827","references":[{"source":"security-advisories@github.com","url":"https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17"},{"source":"security-advisories@github.com","url":"https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12"},{"source":"security-advisories@github.com","url":"https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r"},{"source":"security-advisories@github.com","url":"https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html"}],"sourceIdentifier":"security-advisories@github.com","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-94"},{"lang":"en","value":"CWE-470"}],"source":"security-advisories@github.com","type":"Secondary"}]},"severity":"CRITICAL","source":"nvd","title":"GeoNetwork is a catalog application to manage spatially referenced resources"}