CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

perl: Perl threads have a working directory race condition where file operations may target unintended paths

A flaw was found in the Perl standard library threads component. This vulnerability can allow a local attacker to exploit a race condition in directory handling to access files or load code from unexpected locations...

signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()

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Linux Distros Unpatched Vulnerability : CVE-2026-53352

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets...

CVE-2026-53352

A flaw was found in the Linux kernel. A race condition exists in the zapotherthreads function where job control flags are not properly cleared for the calling thread. This can occur when a multi-threaded process receives a stop signal, and one of its threads concurrently calls execve. The...

CVE-2026-53352

In the Linux kernel, the following vulnerability has been resolved: signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets JOBCTLSTOPPENDING and JOBCTLSTOPCONSUME on all threads and sets...

CVE-2026-53352

Summary: CVE-2026-53352 affects the Linux kernel’s thread-stop handling. When a multi-threaded process receives a stop signal, do_signal_stop() sets JOBCTL_STOP_PENDING and JOBCTL_STOP_CONSUME on all threads and tracks group_stop_count. If one thread concurrently execs, zap_other_threads() kills ...

CVE-2026-53352

In the Linux kernel, the following vulnerability has been resolved: signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets JOBCTLSTOPPENDING and JOBCTLSTOPCONSUME on all threads and sets...

EUVD-2026-40986

In the Linux kernel, the following vulnerability has been resolved: signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets JOBCTLSTOPPENDING and JOBCTLSTOPCONSUME on all threads and sets...

CVE-2026-53352 signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()

In the Linux kernel, the following vulnerability has been resolved: signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets JOBCTLSTOPPENDING and JOBCTLSTOPCONSUME on all threads and sets...

GHSA-CGWC-PV48-FHJ5 python-engineio has unbound thread allocation that can cause denial of service

Impact An attacker can cause the creation of unnecessary background threads in the python-engineio server by exploiting the heartbeat mechanism, which launches a thread when a new connection is received, and when the client sends a PONG packet. Note: this issue primarily affects synchronous...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ptrace: The logic related to getdumpable has been made slightly more robust. The “dumpability” of a task essentially relates to the memory image of the task—the concept stems from whether the task can generate a core dump or not...

CVE-2026-54651

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. This vulnerability is fixed in 6.13.1...

CVE-2026-54651 pypdf: Possible infinite loop when processing threads/articles in writer

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. This vulnerability is fixed in 6.13.1...

CVE-2026-54651

CVE-2026-54651 affects the Python PDF library pypdf prior to version 6.13.1. The issue allows an attacker to craft a PDF that can trigger an infinite loop when merging a file with threads/articles into a writer, potentially impacting availability. The vulnerability is fixed in 6.13.1. Affected co...

CVE-2026-54651 pypdf: Possible infinite loop when processing threads/articles in writer

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. This vulnerability is fixed in 6.13.1...

CVE-2026-55388

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

CVE-2026-55388

Summary: CVE-2026-55388 affects piscina (node.js worker pool). Before versions 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina reads options.filename by plain member access in both the constructor and run() paths, allowing the read to fall through the prototype chain. If Object.prototype.filename is pollut...