low3.3
CVE-2026-3663
A vulnerability was found in xlnt-community xlnt up to 1.6.1.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Xlnt-Community | Xlnt | through 1.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/oneafter/0128/blob/main/xl3/repro
- https://github.com/xlnt-community/xlnt/
- https://github.com/xlnt-community/xlnt/issues/139
- https://github.com/xlnt-community/xlnt/pull/147
- https://vuldb.com/?ctiid.349552
- https://vuldb.com/?id.349552
- https://vuldb.com/?submit.764644