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worksheet_add_table allocates O(n²) memory for default column headers, allocating excess memory, especially for wide tables

Status: Open.

#513 In jmcnamara/libxlsxwriter;

· billdenney opened on Apr 6, 2026

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Phase3

worksheet_data_validation_cell: heap overflow and infinite loop when value_list contains 256+ items

Status: Open.

#512 In jmcnamara/libxlsxwriter;

· billdenney opened on Apr 6, 2026