Bug 2545886 (CVE-2026-63268)

Summary: CVE-2026-63268 libreoffice: libreoffice: Information disclosure via external SQL data source links
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in LibreOffice Calc. An attacker could craft a spreadsheet document with an external database link that points to local text files. If a user opens the malicious document, the application automatically reads the local file contents into the sheet, leading to unauthorized information disclosure.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2545965    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-05 11:37:46 UTC
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A link of the sql type could name a folder of local text files as a database, so opening a document could read a local text file into the sheet. In fixed versions only the csv, html and xml data providers are restored when a document is loaded.