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GHSA-VC5P-V9HR-52MJ Apache Log4j does not verify the TLS hostname in its Socket Appender

🗓️ 18 Dec 2025 21:31:44Reported by GoogleType 
osv
 osv🔗 osv.dev👁 5 Views

Log4j Core Socket Appender lacks TLS hostname verification; upgrade to 2.25.3 or restrict trust store.

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04 Feb 2026 03:10Current
5.8Medium risk
Vulners AI Score5.8
CVSS 46.3
EPSS0.00743
log4j coretls hostname verificationsocket appenderupgrade 2.25.3
5