🛡️ CVE-2026-2703
🟢 CVSS 3.3 — Low ⚠️ Exploit Public CWE-189 NVD
3.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity LOW
CVSS Score 3.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE CWE-189
Public Exploit ⚠️ Yes
Source NVD
Published 2026-02-19
Updated 2026-06-02
Modified 2026-04-29

Affected Packages

Software From version Fixed in
xlnt — 1.6.1

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