CVE-2026-54778

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF UnixDomainSocket POSIX peer identity resolution uses non-reentrant getpwuid and getgrgid calls, allowing concurrent connections to attribute one connection's identity to...

CVE-2026-54772

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. Prior to 1.8.1 and 1.9.1, an unauthenticated remote attacker that can reach a NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding endpoint can trigger premature EOF handling in the CoreWCF...

CVE-2026-54778 CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF UnixDomainSocket POSIX peer identity resolution uses non-reentrant getpwuid and getgrgid calls, allowing concurrent connections to attribute one connection's identity to...

CVE-2026-54778

CVE-2026-54778 : CoreWCF UnixDomainSocket suffers a race in POSIX peer identity resolution due to non-reentrant getpwuid/getgrgid calls, allowing identity misattribution or host process crash under contention. Affected versions are prior to 1.8.1 and 1.9.1; fixed in 1.8.1 and 1.9.1. Impact is lim...

CVE-2026-54772 CoreWCF: Pre-authentication infinite-loop CPU exhaustion in CoreWCF net.tcp / net.pipe / net.uds framing handshake

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. Prior to 1.8.1 and 1.9.1, an unauthenticated remote attacker that can reach a NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding endpoint can trigger premature EOF handling in the CoreWCF...

CVE-2026-54776 CoreWCF: Unix Domain Socket PosixIdentity transport accepts connections that skip the security upgrade

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. Prior to 1.8.1 and 1.9.1, a CoreWCF service hosted on Unix Domain Sockets with PosixIdentity client credentials can accept connections that skip the application/unixposix stream upgrade before dispatching...

Linux Distros Unpatched Vulnerability : CVE-2026-13757

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in p11-kit. The RPC message attribute parsing functions p11rpcmessagegetattribute and p11rpcmessagegetattributearrayvalue form a...

CVE-2026-13757

A flaw was found in p11-kit. The RPC message attribute parsing functions p11rpcmessagegetattribute and p11rpcmessagegetattributearrayvalue form a mutually-recursive call chain with no recursion depth limit when processing nested CKAWRAPTEMPLATE, CKAUNWRAPTEMPLATE, and CKADERIVETEMPLATE attributes...

EUVD-2026-40173

A flaw was found in p11-kit. The RPC message attribute parsing functions p11rpcmessagegetattribute and p11rpcmessagegetattributearrayvalue form a mutually-recursive call chain with no recursion depth limit when processing nested CKAWRAPTEMPLATE, CKAUNWRAPTEMPLATE, and CKADERIVETEMPLATE attributes...

CVE-2026-13757

A flaw was found in p11-kit. The RPC message attribute parsing functions p11rpcmessagegetattribute and p11rpcmessagegetattributearrayvalue form a mutually-recursive call chain with no recursion depth limit when processing nested CKAWRAPTEMPLATE, CKAUNWRAPTEMPLATE, and CKADERIVETEMPLATE attributes...

CVE-2026-57964

A flaw was found in spice-vdagent. On macOS and BSD platforms, an unprivileged local user can bypass authentication by connecting to the Unix Domain Socket Client/Server UDSCS socket. This allows the unauthorized user to receive host-to-guest messages, including clipboard data and file transfers,...

BIT-NODE-2026-48936

A flaw in Node.js Permission API can cause a local server to be started via a Unix domain socket, even without the --allow-net permission. This vulnerability affects one supported release line: Node.js 26...

CVE-2026-48936

A flaw was found in Node.js. The Node.js Permission API can allow a local server to be started through a Unix domain socket, even when the --allow-net permission is not explicitly granted. This bypasses intended security restrictions, potentially leading to unintended local network exposure or...

CVE-2026-48936

CVE-2026-48936: A flaw in the Node.js Permission API can cause a local server to start via a Unix domain socket without the --allow-net permission, affecting the Node.js 26 release line. Connected sources indicate this has been fixed in the nodejs26-26.3.1-1.1 package (openSUSE Tumbleweed) and re...

EUVD-2026-39611

A flaw in Node.js Permission API can cause a local server to be started via a Unix domain socket, even without the --allow-net permission. This vulnerability affects one supported release line: Node.js 26...

CVE-2026-55655

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

CVE-2026-55655 Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

PT-2026-51473

Name of the Vulnerable Software and Affected Versions OpenSSH affected versions not specified Description A flaw in OpenSSH allows a local unprivileged attacker on a Linux client host to hijack client-side X11 forwarding connections. This occurs when X11 forwarding is enabled and a local...

GHSA-Q6V9-43V5-JV9Q CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution

Impact Race condition in POSIX peer identity resolution may attribute one connection’s identity to another getpwuid/getgrgid non-reentrant and may crash the host process under contention. Patches Fixed in CoreWCF v1.8.1 and v1.9.1 Workarounds Restrict UDS filesystem permissions so that only trust...

CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution

Impact Race condition in POSIX peer identity resolution may attribute one connection’s identity to another getpwuid/getgrgid non-reentrant and may crash the host process under contention. Patches Fixed in CoreWCF v1.8.1 and v1.9.1 Workarounds Restrict UDS filesystem permissions so that only trust...