← CVE Intelligence

CVE-2026-2703

xlnt-community xlnt Encrypted XLSX File base64.cpp decode_base64 off-by-one PUBLISHED

Description (CNA)

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.

Affected (CNA)

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

CWE

CWE-193, CWE-189

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.