CVE-2024-5300 AppArmor Base Profile Misconfiguration in snapd Permits Confined Snaps Unauthorized Access to Hashed Passwords via systemd-userdbd

An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile configuration of Canonical snapd. The abstraction rules located in /etc/apparmor.d/abstractions/nss-systemd inherited via inadvertently permit strictly confined snap applications, which...

CVE-2024-5300

An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile configuration of Canonical snapd. The abstraction rules located in /etc/apparmor.d/abstractions/nss-systemd inherited via inadvertently permit strictly confined snap applications, which...

SUSE CVE-2026-55626

xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this...

PT-2026-61942

Name of the Vulnerable Software and Affected Versions Canonical snapd affected versions not specified Description An access control bypass and information disclosure issue exists in the base AppArmor security profile configuration. Abstraction rules in /etc/apparmor.d/abstractions/nss-systemd all...

CVE-2026-47128

The CVE concerns the nono sandbox tool (pre-0.55.0) where Landlock/seccomp policies allowed access to local Unix domain sockets (concrete and abstract). This enabled sandbox escape by contacting the per-user systemd DBus socket, with the root cause being incomplete mediation of local IPC. Impact ...

CVE-2026-55626 xrdp: No authentication required with Xvnc backend on RHEL 9

xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this...

CVE-2026-55626

CVE-2026-55626 affects xrdp when using the Xvnc backend over UNIX domain sockets. According to the sources, in versions up to 0.10.6, an authenticated local user session can cause the Xvnc process to launch with insufficient authentication, allowing the attacker to bypass session isolation and vi...

CVE-2026-55626

xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this...

EUVD-2026-45794

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix UAF read of tail-len in unixstreamdatawait unixstreamdatawait does skbpeektail&sk-skreceivequeue without holding any lock that prevents SKBs on that queue from being dequeued and freed. This has been the case since...

PT-2026-61426

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the af unix module. The unix stream data wait function calls skb peek tail on the sk-sk receive queue without holding a lock to prevent Socket Buffer...

PT-2026-61024

Name of the Vulnerable Software and Affected Versions xrdp versions prior to 0.10.6.1 Description An issue exists when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, as the Xvnc process is launched with insufficient authentication mechanisms. A local...

PYSEC-2026-365 TigerVNC accessible via the network and not just via a UNIX socket as intended

Summary jupyter-remote-desktop-proxy was meant to rely on UNIX sockets readable only by the current user since version 3.0.0, but when used with TigerVNC, the VNC server started by jupyter-remote-desktop-proxy were still accessible via the network. This vulnerability does not affect users having...

SUSE CVE-2026-53035

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-53034

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF and sockmap components, specifically within the afunix socket operations. A race condition occurs during the connection process where a socket's state is updated before its peer is fully assigned. This timing issue can lead to a...

Linux Distros Unpatched Vulnerability : CVE-2026-53035

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap...

EUVD-2026-38901

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock for afunix iter When a BPF iterator program updates a sockmap, there is a race condition in unixstreambpfupdateproto where the peer pointer can become stale1 during a state transition TCPESTABLISHED ...

CVE-2026-53005

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AFUNIX GC. When a socket in SOCKMAP receives skb with inflight fd, skpsockverdictdataready looks up the mapped socket and enqueue skb to its...

CVE-2026-53035 bpf, sockmap: Fix af_unix iter deadlock

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-53033 bpf, sockmap: Take state lock for af_unix iter

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock for afunix iter When a BPF iterator program updates a sockmap, there is a race condition in unixstreambpfupdateproto where the peer pointer can become stale1 during a state transition TCPESTABLISHED ...

CVE-2026-52928 af_unix: Reject SIOCATMARK on non-stream sockets

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...