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log4net

3 known vulnerabilities (1 medium), with the versions each affects and the releases that fix them.

Latest release
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Newest unaffected release
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Advisories
3 · 1 medium
Registry
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Advisories 3

  • CVE-2026-40021Medium 6.3

    Apache Log4net: Silent log event loss in XmlLayout and XmlLayoutSchemaLog4J due to unescaped XML 1.0 forbidden characters

    Affected: fixed in 3.3.0; fixed in 3.3.0.

  • Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files.

    Affected: fixed in 2.0.10.

  • Format string vulnerability in LocalSyslogAppender in Apache log4net 1.2.9 might allow remote attackers to cause a denial of service…

    Affected: fixed in 1.2.10.