CVE-2026-3663
Low · 3.3CVSS
3.3
EPSS
0.2%
Published
Mar 7, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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