CVE-2026-3664

Description

A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cryptography/compound_document.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to out-of-bounds read. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 147. Applying a patch is advised to resolve this issue.

References

https://vuldb.com/?submit.764646

https://vuldb.com/?id.349553

https://vuldb.com/?ctiid.349553

https://github.com/xlnt-community/xlnt/pull/147

https://github.com/xlnt-community/xlnt/issues/141

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

https://github.com/oneafter/0128/blob/main/xl5/repro

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4