Xen security vulnerabilities

Xen is an open-source virtual machine monitor product developed by Xen. This product allows different and incompatible operating systems to run on the same computer. It also supports migration during runtime, ensuring smooth operation and avoiding downtime. Xen has security vulnerabilities; these...

CVE-2026-23553: Improper Initialization

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...

CVE-2026-0483: Improper Neutralization of Input During Web Page Generation

Stored Cross-Site Scripting XSS vulnerability in the PDF file upload functionality of Live Helper Chat, versions prior to 4.72. An attacker can upload a malicious PDF file containing an XSS payload, which will be executed in the user's context when they download and open the file via the link...

PT-2026-5119

LimeSurvey 4.3.10 contains a stored cross-site scripting vulnerability in the Survey Menu functionality of the administration panel. Attackers can inject malicious SVG scripts through the Surveymenutitle and Surveymenuparent id parameters to execute arbitrary JavaScript in administrative contexts...

Kyverno Denial of Service via Context Variable Amplification in Policy Engine

Summary Unbounded memory consumption in Kyverno's policy engine allows users with policy creation privileges to cause Denial of Serviceby crafting policies that exponentially amplify string data through context variables. Details For example, the random JMESPath function in...

GHSA-R2RJ-WWM5-X6MQ Kyverno Denial of Service via Context Variable Amplification in Policy Engine

Summary Unbounded memory consumption in Kyverno's policy engine allows users with policy creation privileges to cause Denial of Serviceby crafting policies that exponentially amplify string data through context variables. Details For example, the random JMESPath function in...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the context variable evaluation process. An attacker with policy creation privileges can exhaust system memory and disrupt service availability with policies that exponentially...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the context variable evaluation process. An attacker with policy creation privileges can exhaust system memory and disrupt service availability with policies that exponentially...

CVE-2026-23881

Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially...

CGA-RXF5-MJP7-8G8Q

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CVE-2026-23881 Kyverno Denial of Service via Context Variable Amplification in Policy Engine

Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially...

CVE-2026-23881 Kyverno Denial of Service via Context Variable Amplification in Policy Engine

Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially...

CVE-2026-23881 Kyverno Denial of Service via Context Variable Amplification in Policy Engine

Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially...

CVE-2026-23881

CVE-2026-23881 affects Kyverno policy engine prior to versions 1.16.3 and 1.15.3, which exhibit unbounded memory consumption that can cause denial of service when policies with context variables are crafted by users with policy-creation privileges. The issue is resolved in 1.16.3 and 1.15.3 by a ...

CVE-2026-23881

Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3 and 1.15.3 have unbounded memory consumption in Kyverno's policy engine that allows users with policy creation privileges to cause denial of service by crafting policies that exponentially...

CVE-2026-1470

n8n contains a critical Remote Code Execution RCE vulnerability in its workflow Expression evaluation system. Expressions supplied by authenticated users during workflow configuration may be evaluated in an execution context that is not sufficiently isolated from the underlying runtime. An...

AI-Powered Forensics, at Cloud Speed

Reviewing Wiz’s approach to forensics in the cloud era, and announcing the public preview of AI-powered, context-aware forensics capabilities...

USN-7979-1: jaraco.context vulnerability

It was discovered that jaraco.context incorrectly handled certain zip file paths. An attacker could possibly use this issue to extract arbitrary files outside of the intented extraction directory...

x86: incomplete IBPB for vCPU isolation

ISSUE DESCRIPTION In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CP...

📄 MCPJam 1.4.2 Command Injection

This Metasploit exploit module targets the MCP Model Context Protocol server, specifically exploiting a command injection vulnerability in the /api/mcp/connect endpoint. The vulnerability allows unauthorized remote command execution by sending crafted JSON payloads that are executed by the server...