CVE-2026-63267 LFI and GET SSRF via calcext:data-mappings and csv provider

LibreOffice Calc can link a cell range to an external csv data source, and the link is saved in the document. Such a link was fetched while the document loaded, so opening a document could read a local file into the sheet, or make a request to a host of the document's choosing. In fixed versions...

CVE-2026-63267

LibreOffice Calc is vulnerable to Local File Inclusion (LFI) and GET Server-Side Request Forgery (SSRF) via the calcext:data-mappings and csv provider. The root cause is that the application automatically fetches external CSV data links saved in a document during the loading process. This allows ...

CVE-2026-63267

LibreOffice Calc can link a cell range to an external csv data source,...