EUVD-2026-93864

Improper Neutralization of Null Byte or NUL Character vulnerability in the OutputDebugStringAppender of Apache log4net. A NUL character in logged content ended the debug output record at that point, so everything the layout rendered after it, including exception text and trailing fields, was...

CVE-2026-105240

The Apache log4net logging framework (versions 1.2.9 before 3.5.0) is vulnerable to an Improper Neutralization of Null Byte or NUL Character (CWE-158) within the OutputDebugStringAppender . On Windows systems, a NUL character in logged content causes the debug output record to truncate prematurel...

CVE-2026-105240 Apache log4net: NUL character truncates OutputDebugStringAppender records

Improper Neutralization of Null Byte or NUL Character vulnerability in the OutputDebugStringAppender of Apache log4net. A NUL character in logged content ended the debug output record at that point, so everything the layout rendered after it, including exception text and trailing fields, was...