NPM: node-opcua: TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - Resource Exhaustion

Resource Exhaustion vulnerability discovered by ? in WordPress Npm node-opcua-transport versions = 2.0.0, 2.170.0...

node-opcua: TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - Resource Exhaustion

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...

EUVD-2026-80869

node-opcua is an OPC UA implementation for TypeScript and Node.js. From 2.0.0 until 2.170.0, node-opcua clients using the default keepSessionAlive setting can enter a repeated reconnection cycle when an OPC UA server's clock skew causes BadInvalidTimestamp responses...

CVE-2026-68904 node-opcua: TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - Resource Exhaustion

node-opcua is an OPC UA implementation for TypeScript and Node.js. From 2.0.0 until 2.170.0, node-opcua clients using the default keepSessionAlive setting can enter a repeated reconnection cycle when an OPC UA server's clock skew causes BadInvalidTimestamp responses...

CVE-2026-68904 node-opcua: TCP Socket Leak (FIN-WAIT-2) via keepalive reconnection cycle - Resource Exhaustion

node-opcua is an OPC UA implementation for TypeScript and Node.js. From 2.0.0 until 2.170.0, node-opcua clients using the default keepSessionAlive setting can enter a repeated reconnection cycle when an OPC UA server's clock skew causes BadInvalidTimestamp responses...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the requestsock leak in sk lookup helpers A customer reported a requestsocket leak in a Calico cloud environment. We found that a BPF program was performing a socket lookup, taking a reference count of the socket. It w...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The socket is closed after it has been accepted, even when the per-IP limit is exceeded and a connection attempt fails. When the per-IP connection limit is exceeded in ksmbdkthreadfn, the code sets ret to -EAGAIN and...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/9p: A potential socket leak has been fixed in p9socketopen. Both p9fdcreatetcp and p9fdcreateunix will call p9socketopen. If the creation of p9transfd fails, both p9fdcreatetcp and p9fdcreateunix will return an error directly...

CVE-2026-80983

A flaw was found in the Linux kernel's implementation of the Server Message Block SMB over Remote Direct Memory Access RDMA protocol, specifically within the net/smc component. An error path in the smcswitchconns function, triggered during link failover events, can lead to a socket reference coun...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: The return value of nvmettcpsetqueuesock is currently ignored in nvmettcptlshandshakedone. If this function fails e.g., because the socket is not in the TCPESTABLISHED state, the socket callbacks will not be properly...

SUSE CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

SUSE CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74385

A flaw was found in the nvmet-tcp component of the Linux kernel. This vulnerability arises from ignoring the return value of a function during the TLS handshake, specifically when the network socket is not in an established state. This oversight prevents proper cleanup, leading to the leakage of...

CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74536 Bluetooth: ISO: fix leaking sk after socket release

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

EUVD-2026-59729

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74536

In CVE-2026-74536, the Linux kernel Bluetooth ISO stack suffers a leak: iso_sock_kill() can leak the sk reference after socket release or when __iso_sock_close() does not set SOCK_ZAPPED, because sock_orphan(sk) marks SOCK_DEAD. The fix replaces SOCK_DEAD with a dedicated BT_SK_KILLED flag and ad...

CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

EUVD-2026-59532

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check return value of nvmettcpsetqueuesock The return value of nvmettcpsetqueuesock is currently ignored in nvmettcptlshandshakedone. If it fails e.g., due to the socket not being in TCPESTABLISHED state, the socket...

PT-2026-72821

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nvmet-tcp module where the return value of the nvmet tcp set queue sock function is ignored within nvmet tcp tls handshake done. If the function fails, such as whe...