CVE-2026-3663

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compounddocumentistreambuf::xsgetn of the file source/detail/cryptography/compounddocument.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. Th...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the xsgetn function of the XLSX file parser process. An attacker can cause a denial of service by providing specially crafted input that triggers an out-of-bounds read during file parsing. Remediation A fix was...

CVE-2026-3663

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compounddocumentistreambuf::xsgetn of the file source/detail/cryptography/compounddocument.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. Th...

CVE-2026-3663 xlnt-community xlnt XLSX File compound_document.cpp xsgetn out-of-bounds

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compounddocumentistreambuf::xsgetn of the file source/detail/cryptography/compounddocument.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. Th...

CVE-2026-3663

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compounddocumentistreambuf::xsgetn of the file source/detail/cryptography/compounddocument.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. Th...

CVE-2026-3663

The CVE-2026-3663 issue affects xlnt-community xlnt up to 1.6.1, specifically the xlnt::detail::compound_document_istreambuf::xsgetn function in source/detail/cryptography/compound_document.cpp of the XLSX File Parser. A manipulation can trigger an out-of-bounds read, with local access required. ...