Linux Distros Unpatched Vulnerability : CVE-2026-72183

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - landlock: Fix LANDLOCKSCOPESIGNAL bypass on the SIGIO path LANDLOCKSCOPESIGNAL must prevent a sandboxed process from signaling processes outside its Landlock...

CVE-2026-72183

A flaw was found in the Linux kernel's Landlock security module. A sandboxed process can bypass the intended signal isolation provided by LANDLOCKSCOPESIGNAL. By manipulating file descriptors with specific fcntl calls and asynchronous I/O SIGIO delivery, a local attacker can send signals, such as...

CVE-2026-72183

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LANDLOCKSCOPESIGNAL bypass on the SIGIO path LANDLOCKSCOPESIGNAL must prevent a sandboxed process from signaling processes outside its Landlock domain. It can be bypassed through the asynchronous SIGIO delivery path...

CVE-2026-72183 landlock: Fix LANDLOCK_SCOPE_SIGNAL bypass on the SIGIO path

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LANDLOCKSCOPESIGNAL bypass on the SIGIO path LANDLOCKSCOPESIGNAL must prevent a sandboxed process from signaling processes outside its Landlock domain. It can be bypassed through the asynchronous SIGIO delivery path...

CVE-2026-72183

CVE-2026-72183 concerns a Linux kernel LANDLOCK bypass on the SIGIO path. The vulnerability allowed a sandboxed process that owns a file/socket to arm fcntl(F_SETOWN), F_SETSIG and O_ASYNC so that an I/O event would deliver a chosen signal to the entire process group, potentially affecting non-sa...

PT-2026-72371

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LANDLOCK SCOPE SIGNAL bypass on the SIGIO path LANDLOCK SCOPE SIGNAL must prevent a sandboxed process from signaling processes outside its Landlock domain. It can be bypassed through the asynchronous SIGIO delivery...

EUVD-2025-209565

An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject all network requests. However, certain types of HTTP request...

CVE-2020-35508

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process...

kernel: possible to send arbitrary signals to a privileged (suidroot) parent process

A flaw was found in the Linux kernel loose validation of child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process...