CVE-2026-3665

Description

A vulnerability was identified in xlnt-community xlnt up to 1.6.1. The affected element is the function xlnt::detail::xlsx_consumer::read_office_document of the file source/detail/serialization/xlsx_consumer.cpp of the component XLSX File Parser. The manipulation leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used.

References

https://vuldb.com/?submit.764647

https://vuldb.com/?id.349554

https://vuldb.com/?ctiid.349554

https://github.com/xlnt-community/xlnt/issues/140

https://github.com/xlnt-community/xlnt/

https://github.com/oneafter/0128/blob/main/xl4/repro

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4