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CVE-2026-59162 is an input-validation flaw in Excelize, a Go library for reading and writing Microsoft Excel spreadsheets. In versions prior to 2.11.0, shared-string cell values are parsed with strconv.Atoi and the resulting index is validated only against the upper bound before being used to index the shared string slice. A crafted XLSX file can supply a negative shared-string index such as -1, causing an out-of-range slice access when the library resolves the cell value through functions such as GetCellValue or GetRows. This results in a runtime panic while processing the workbook.
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No public exploit code observed for this vulnerability.
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No news coverage yet. Advisories and community discussion only.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.