{"id":"CVE-2026-58400","state":"PUBLISHED","title":"GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter","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.","publishedAt":"2026-09-03T17:06:17.827Z","updatedAt":"2026-09-04T13:42:08.271Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["geonetwork core-geonetwork"],"affected":[{"vendor":"geonetwork","product":"core-geonetwork","versions":[{"version":">= 4.3.0, < 4.4.12","status":"affected"},{"version":"< 4.2.17","status":"affected"}]}],"references":["https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r","https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17","https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12","https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html"],"weaknesses":["CWE-94","CWE-470"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/58xxx/CVE-2026-58400.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-58400","state":"PUBLISHED","datePublished":"2026-09-03T17:06:17.827Z","dateUpdated":"2026-09-04T13:42:08.271Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-30T18:19:58.378Z"},"containers":{"cna":{"title":"GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter","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."}],"affected":[{"vendor":"geonetwork","product":"core-geonetwork","versions":[{"version":">= 4.3.0, < 4.4.12","status":"affected"},{"version":"< 4.2.17","status":"affected"}]}],"references":[{"url":"https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r","name":"https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-x898-729x-cc3r","tags":["x_refsource_CONFIRM"]},{"url":"https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17","name":"https://docs.geonetwork-opensource.org/4.2/overview/change-log/version-4.2.17","tags":["x_refsource_MISC"]},{"url":"https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12","name":"https://docs.geonetwork-opensource.org/4.4/overview/change-log/version-4.4.12","tags":["x_refsource_MISC"]},{"url":"https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html","name":"https://thehackernews.com/2026/09/geonetwork-fixes-unauthenticated-rce.html","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-470","lang":"en","description":"CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-03T17:06:17.827Z"},"source":{"advisory":"GHSA-x898-729x-cc3r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-03T17:49:43.605439Z","id":"CVE-2026-58400","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-04T13:42:08.271Z"}}]}}}