PT-2026-58020

Name of the Vulnerable Software and Affected Versions Arena Simulation affected versions not specified Description A memory corruption issue exists in the expmt.exe Siman component. The flaw is caused by improper validation of user-supplied data, leading to an out-of-bounds write, which occurs wh...

PT-2026-58019

Name of the Vulnerable Software and Affected Versions Arena Simulation affected versions not specified Description An issue exists in the model.exe Siman component where improper validation of user-supplied data leads to memory corruption via an out-of-bounds write. This occurs when the software...

PYSEC-2026-2485 FastChat has a Content Moderation Bypass via Arena Side-by-Side Views

A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function addtext of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The root cause was...

Always-Incorrect Control Flow Implementation

Overview fschat is an An open platform for training, serving, and evaluating large language model based chatbots. Affected versions of this package are vulnerable to Always-Incorrect Control Flow Implementation via the function addtext of the component Arena Side-by-Side View Handler. The...

FastChat has a Content Moderation Bypass via Arena Side-by-Side Views

A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function addtext of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The root cause was...

PT-2026-59151

A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function add text of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The root cause was...

CVE-2026-59225

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The...

CVE-2026-59225

Open WebUI vulnerability CVE-2026-59225 affects versions 0.8.12 up to before 0.10.0. An authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model via task endpoints like /api/v1/tasks/moa/completions. The normal chat flow re-checks submodel ac...

CVE-2026-59225 Open WebUI: Arena task endpoints can bypass underlying model access controls

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The...

CVE-2026-59225 Open WebUI: Arena task endpoints can bypass underlying model access controls

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The...

PT-2026-56888

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.8.12 through 0.9.x Description An authenticated non-admin user with read access to an arena wrapper model can access a restricted underlying model. This occurs because task endpoints, such as...

PYSEC-2026-684 Memory leak in Nanopb

Impact Decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being decoded contains the submessage multiple times. This is rare in normal messages, but it is a concern wh...

Linux Distros Unpatched Vulnerability : CVE-2026-53031

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds...

SUSE CVE-2026-53031

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53031

A flaw was found in the Linux kernel. The arenaallocpages function within the Berkeley Packet Filter BPF subsystem does not properly validate the nodeid parameter. A local attacker could exploit this vulnerability by supplying an invalid nodeid, which is then used without bounds checking during...

EUVD-2026-38899

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53031

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53031

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53031 bpf: Validate node_id in arena_alloc_pages()

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53031

The CVE-2026-53031 issue affects the Linux kernel BPF unit: arena_alloc_pages() accepts a plain int node_id and forwards it through the allocation chain without bounds checks. A fix validates node_id before passing it down, mitigating potential memory corruption that could lead to DoS or instabil...