CVE-2026-63267

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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 external data links are updated under the same link update control as other links in a spreadsheet.

CWE	CWE-918 CWE-200
Vendor	the document foundation
Product	libreoffice
Published	Oct 5, 2026
Last Updated	Oct 5, 2026

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Affected Versions

The Document Foundation / LibreOffice

26.2 < < 26.2.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

libreoffice.org: https://www.libreoffice.org/about-us/security/advisories/cve-2026-63267

Credits

🔍 Thomas Rinsma and Edoardo Geraci from Codean Labs Caolán McNamara of Collabora Productivity