CVE-2026-105244: fallo de gravedad media en Apache log4net
Apache log4net: RemoteSyslogAppender silently deletes non-ASCII content
Publicada el · Actualizada el
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.3%
probabilidad de explotación
0.3%top 75% de las CVE
explotación observada
noninguna fuente lo reporta
Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net.
Every character outside visible ASCII and space was removed from the record instead of being escaped, so non-ASCII text and control characters such as tabs disappeared without notice. A party whose data reaches a log message could make a distinct value look identical in the record, for example a user name holding a zero-width space logged as admin. Only applications that use RemoteSyslogAppender are affected.
This issue affects Apache log4net: from 1.2.12 before 3.5.0.
Users are recommended to upgrade to version 3.5.0, which fixes the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Productos afectados
Apache Software Foundation · Apache log4netCVEs relacionadas — Apache log4net
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