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Threats Tagged 'ubuntu-cve-2026-105240'

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Threats Tagged 'ubuntu-cve-2026-105240'

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CVE-2026-105240 is a vulnerability in Apache log4net's OutputDebugStringAppender on Windows platforms. It involves improper neutralization of the null byte (NUL) character in logged content, causing the debug output record to terminate prematurely and omit subsequent data such as exception details. This allows a party whose data is logged to hide parts of the log message. The issue affects log4net versions from 1.2.9 up to but not including 3.5.0. Upgrading to version 3.5.0 resolves the vulnerability.

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