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Medium

Arbitrary file write via calcext:data-mappings, sql provider and Firebird backup functionality

Type: advisorySource: Official CVE List1 source record

LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only inside its own private directory.

Announced Source revision 1
Original source ↗

CVE-2026-63266

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-63266

LibreOffice

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "The Document Foundation",
    "product": "LibreOffice",
    "versions": [
      {
        "status": "affected",
        "version": "26.2",
        "lessThan": "< 26.2.5",
        "versionType": "26.2 series"
      }
    ],
    "defaultStatus": "unknown"
  }
]
Related CVEs
CVE-2026-63266

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#8587 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement