GHSA-r2pf-9cw4-5j65: node-opcua: TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - Resource Exhaustion
HIGHHigh-risk vulnerability — CVSS 7
SUMMARY ------- A combination of bugs in node-opcua causes unlimited TCP socket accumulation (FIN-WAIT-2 state) during automatic reconnection, leading to memory exhaustion and eventual container/process crash (OOM kill). The issue is triggered by the default configuration (keepSessionAlive: true) when the OPC UA server has clock skew relative to the client. Affected version: Tested on 2.169.0 (latest as of April 2026). …
CVE · detail
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