{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-63277", "assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "state": "PUBLISHED", "assignerShortName": "Document Fdn.", "dateReserved": "2026-07-16T08:17:05.512Z", "datePublished": "2026-10-05T11:17:20.739Z", "dateUpdated": "2026-10-05T12:43:43.032Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "shortName": "Document Fdn.", "dateUpdated": "2026-10-05T11:17:20.739Z" }, "title": "RCE via calcext:data-mappings, sql provider and jdbc connector", "datePublic": "2026-10-05T23:59:00.000Z", "descriptions": [ { "lang": "en", "value": "LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document.
A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location.
In fixed versions an entry in a Java class path has to be a file URL.
" } ] } ], "affected": [ { "vendor": "The Document Foundation", "product": "LibreOffice", "defaultStatus": "unknown", "versions": [ { "status": "affected", "version": "26.2", "lessThan": "< 26.2.5", "versionType": "26.2 series" } ] } ], "credits": [ { "lang": "en", "type": "reporter", "value": "Rick de Jager of the V12 security team" }, { "lang": "en", "type": "reporter", "value": "Thomas Rinsma and Edoardo Geraci from Codean Labs" }, { "lang": "en", "type": "remediation developer", "value": "Caolán McNamara of Collabora Productivity" } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-829", "description": "CWE-829 Inclusion of Functionality from Untrusted Control Sphere", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-175", "descriptions": [ { "lang": "en", "value": "CAPEC-175 Code Inclusion" } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.5, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" } } ], "references": [ { "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-63277" } ], "source": { "discovery": "EXTERNAL" }, "x_generator": { "engine": "Vulnogram 1.0.2" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-05T12:43:08.481980Z", "id": "CVE-2026-63277", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T12:43:43.032Z" } } ] } }