CVE-2026-63267: medium-severity vulnerability in The Document Foundation LibreOffice
LFI and GET SSRF via calcext:data-mappings and csv provider
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.7epss 0.1%
exploitation probability
0.1%top 99% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Affected products
The Document Foundation · LibreOfficeRelated CVEs — The Document Foundation LibreOffice
In the same product, most dangerous first.
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