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...

postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation

A flaw was found in PostgreSQL. Uncontrolled recursion during SSL Secure Sockets Layer and GSS Generic Security Service negotiation allows an attacker to achieve a sustained denial of service. This can be exploited by an attacker with access to a PostgreSQL AFUNIX socket. If SSL and GSS are both...

Expired Pointer Dereference

Overview CoreWCF.UnixDomainSocket is a port of the service side of Windows Communication Foundation WCF to .NET Core. The goal of this project is to enable existing WCF services to move to .NET Core. Affected versions of this package are vulnerable to Expired Pointer Dereference in...

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...

Missing Authentication for Critical Function

Overview CoreWCF.UnixDomainSocket is a port of the service side of Windows Communication Foundation WCF to .NET Core. The goal of this project is to enable existing WCF services to move to .NET Core. Affected versions of this package are vulnerable to Missing Authentication for Critical Function...

GHSA-WJPQ-6766-7F5J CoreWCF: Unix Domain Socket PosixIdentity transport accepts connections that skip the security upgrade

Impact A CoreWCF service hosted on Unix Domain Sockets with the PosixIdentity client credential type UnixDomainSocketBinding with Security.Mode = TransportCredentialOnly and Security.Transport.ClientCredentialType = PosixIdentity does not require the client to perform the application/unixposix...

CoreWCF: Unix Domain Socket PosixIdentity transport accepts connections that skip the security upgrade

Impact A CoreWCF service hosted on Unix Domain Sockets with the PosixIdentity client credential type UnixDomainSocketBinding with Security.Mode = TransportCredentialOnly and Security.Transport.ClientCredentialType = PosixIdentity does not require the client to perform the application/unixposix...

PT-2026-51075

Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1 Description CoreWCF UnixDomainSocket POSIX peer identity resolution utilizes non-reentrant getpwuid and getgrgid calls. This creates a race condition where concurrent connections...

PT-2026-51069

Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1 Description An unauthenticated remote attacker can trigger premature EOF End of File handling during the framing handshake of the net.tcp, net.pipe, or net.uds components. This...

PT-2026-51073

Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1 Description A CoreWCF service hosted on Unix Domain Sockets using PosixIdentity client credentials may accept connections that bypass the application/unixposix stream upgrade befo...

postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation

A flaw was found in PostgreSQL. Uncontrolled recursion during SSL Secure Sockets Layer and GSS Generic Security Service negotiation allows an attacker to achieve a sustained denial of service. This can be exploited by an attacker with access to a PostgreSQL AFUNIX socket. If SSL and GSS are both...

SUSE CVE-2026-45536

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 - 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has...

CVE-2026-45536

A flaw was found in Netty, a network application framework. A local attacker could exploit a vulnerability in the nettyunixsocketrecvFd function when handling SCMRIGHTS messages in Epoll or KQueue DomainSocketChannel with DomainSocketReadMode.FILEDESCRIPTORS enabled. Incorrect handling of file...

CVE-2026-45536

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has...

UBUNTU-CVE-2026-45536

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has...

CVE-2026-45536 Netty: Unix-socket fd receive leaks descriptors when peer sends two at once

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has...