Unity Linux 20.1060e / 20.1070e Security Update: rubygem-websocket-extensions (UTSA-2026-016659)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016659 advisory. websocket-extensions ruby module prior to 0.1.5 allows Denial of Service DoS via Regex Backtracking. The extension parser may take quadratic time when parsing a head...

CVE-2026-8467

Code Injection vulnerability in phenixdigital phoenixstorybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation. The psb-assign WebSocket event handler in 'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handleevent/3...

CVE-2026-8467 Unauthenticated remote code execution via HEEx template injection in phoenix_storybook playground

Code Injection vulnerability in phenixdigital phoenixstorybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation. The psb-assign WebSocket event handler in 'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handleevent/3...

CVE-2026-8467

Code Injection vulnerability in phenixdigital phoenixstorybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation. The psb-assign WebSocket event handler in 'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handleevent/3...

EEF-CVE-2026-8467 Unauthenticated remote code execution via HEEx template injection in phoenix_storybook playground

Summary Code Injection vulnerability in phenixdigital phoenix\storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation. The psb-assign WebSocket event handler in...

Astra Linux – Vulnerability in Tomcat9

DoS attack due to a vulnerability related to incomplete cleanup in Apache Tomcat. WebSocket clients were able to keep WebSocket connections open, leading to increased resource consumption. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18,...

Astra Linux – Vulnerability in Thunderbird, Firefox

A poorly handled security check during the creation of a WebSocket in a WebWorker caused the Content Security Policy’s connect-src header to be ignored. This could lead to connections being made to restricted origins from within WebWorkers. This vulnerability affects Firefox 109, Firefox ESR 102....

Astra Linux – Vulnerability in libvncserver

It was discovered that the websockets.c file in LibVNCServer prior to version 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, resulting in a heap-based buffer overflow...

Astra Linux – Vulnerability in ruby-websocket-extensions

The websocket-extensions Ruby module before version 0.1.5 allowed Denial of Service DoS attacks through Regex backtracking. The extension parser could take quadratic time when parsing a header containing an unclosed string parameter value whose content was a repeated two-byte sequence of a...

Astra Linux – Vulnerability in python-eventlet

Eventlet is a concurrent networking library for Python. A WebSocket peer may exhaust memory on the Eventlet side by sending very large WebSocket frames. A malicious peer may also exhaust memory on the Eventlet side by sending highly compressed data frames. A patch in version 0.31.0 restricts...

Astra Linux - уязвимость в tomcat9

Exposure of the HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerabilities in Apache Tomcat. This issue affects Apache Tomcat versions: 11.0.0-M1 through 11.0.21, 10.1.0-M1 through 10.1.54, 9.0.2 through 9.0.117, 8.5.24 through 8.5.100, and 7.0.83 through...

Moderate: Red Hat Security Advisory: qemu-kvm security update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

ALSA-2026:18772 Moderate: qemu-kvm security update

Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fixes: qemu-kvm: VNC WebSocket handshake use-after-free CVE-2025-11234 For more...

RHEL 9 : qemu-kvm (RHSA-2026:18772)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:18772 advisory. Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the...

Moderate: qemu-kvm security update

Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fixes: qemu-kvm: VNC WebSocket handshake use-after-free CVE-2025-11234 For more...

CVE-2026-42544

Granian is a Rust HTTP server for Python applications. From 1.2.0 to 2.7.4, Granian aborts a worker process when an unauthenticated client sends a WebSocket upgrade request whose Sec-WebSocket-Protocol header contains non-ASCII bytes. The crash happens in Granian's WebSocket scope construction...

ws: Uninitialized memory disclosure

Impact The websocket.close implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. Proof of concept js import deepStrictEqual from 'node:assert'; import WebSocket, WebSocketServer from 'ws'; const wss = new WebSocketServer port: 0,...

GHSA-58QX-3VCG-4XPX ws: Uninitialized memory disclosure

Impact The websocket.close implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. Proof of concept js import deepStrictEqual from 'node:assert'; import WebSocket, WebSocketServer from 'ws'; const wss = new WebSocketServer port: 0,...

EUVD-2026-30543

ws: Uninitialized memory disclosure...

BIT-TOMCAT-2022-25762 Response mix-up with WebSocket concurrent send and close

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling...