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CVE-2026-3663

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

Description (CNA)

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 (CNA)

Vendor / productVersions
xlnt-community / xlntaffected 1.6.0; affected 1.6.1

CWE

CWE-125, CWE-119

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.