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CVE PROGRAM SOURCE RECORD4.8 Medium

CVE-2026-3663

xlnt-community xlnt XLSX File compound_document.cpp xsgetn out-of-bounds

Description

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compound_document_istreambuf::xsgetn of the file source/detail/cryptography/compound_document.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit has been made public and could be used. The patch is named 147. It is recommended to apply a patch to fix this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

xlnt-community xlnt

  • 1.6.0affected
  • 1.6.1affected

References