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What it means for your servers

The security stories that matter, explained by our team — with the concrete steps to take.

Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

The Hacker News
The Hacker News Vulnerabilities

Critical Flaw in Python’s Popular Pillow Image Library Allows Code Execution via a Crafted Image

Pillow, the most widely used image library for Python, can be made to run operating system commands on a server by specifying the name of a file it is told to …

The Hacker News
The Hacker News Vulnerabilities

Critical x402 SDK Flaw Could Let Malicious APIs Drain AI Agents’ Token Balances

AI agents paying for API calls with the x402 SDKs could sign a payment for their full balance of a supported token if a malicious API asked for it, security fi…

The Hacker News
The Hacker News Vulnerabilities

Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data

Malicious Brotli data can make an application on an official build of Node.js run attacker-supplied code, security researchers at Imperva have demonstrated. Th…

Linux

The Hacker News
The Hacker News Vulnerabilities

PHP2Shell Exploit Attempts Hit Millions as Attackers Try to Deploy Mirai Malware

Threat actors have been observed unsuccessfully attempting to exploit the newly disclosed PHP2Shell vulnerabilities to rope infected systems into a Mirai botne…

The Record
The Record Vulnerabilities

Reports of PHP bug exploitation attempts grow as experts downplay viability of exploits

The headline-grabbing bugs known colloquially as PHP2Shell are giving cyber analysts a lot to track — and a lot to debunk.

PHP

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

Critical PHP Vulnerabilities Let Attackers Run Code Without a Login

PHP has released emergency updates for two critical vulnerabilities that can let attackers run malicious code on a web server without logging in.

PHP

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

New DNS Security Flaws Can Disrupt Website and Email Access

An online shop can be running normally while customers cannot reach it.

The Hacker News
The Hacker News Vulnerabilities

Arista Warns of Critical VeloCloud SQL Injection Zero-Day Exploited in Attacks

Attackers are exploiting a zero-day SQL injection flaw in Arista's VeloCloud Orchestrator (VCO), the central management system for VeloCloud SD-WAN networks, t…

The Hacker News
The Hacker News Breaches & leaks

ThreatsDay: AI Secrets Leak, PingCAP Source Theft, Signal Hang-Up Flaw, Laravel Auth Bypass + 21 More

This week has already been rough for cybersecurity. Critical PHP and GitLab RCE flaws, serious Linux security bugs, compromised eMudhra certificates, a Node.js…

Linux PHP GitLab

BleepingComputer
BleepingComputer Vulnerabilities

Arista patches new VeloCloud Orchestrator zero-day exploited in attacks

Arista Networks released security updates to patch an actively exploited zero-day vulnerability affecting VeloCloud Orchestrator (VCO) On-Prem deployments.…

The Hacker News
The Hacker News Vulnerabilities

Two CVSS 9.0 Linux KSMBD RCE Flaws Disclosed on Public Mailing Lists Before Kernel Fixes

Linux servers running KSMBD, the kernel's built-in SMB server, are exposed to two publicly reported remote code execution flaws rated 9.0 by Trend Micro's Zero…

Linux

BleepingComputer
BleepingComputer Vulnerabilities

Amazon says PHP2Shell exploitation began 4 days before patches

Security researchers at Amazon Threat Intelligence say attackers began targeting the PHP2Shell flaws four days before security patches were released on Wednesd…

AWS

BleepingComputer
BleepingComputer Vulnerabilities

GitLab warns of new max severity code execution vulnerability

GitLab has released security patches for a maximum-severity Regular Expression Compiler flaw that can let remote attackers run arbitrary code on vulnerable ser…

GitLab

The Hacker News
The Hacker News Vulnerabilities

OpenCode Flaw Lets Malicious MCP Servers Execute Code During Sign-In on Windows and WSL

A flaw in the OpenCode AI coding agent allowed a malicious or hijacked MCP server to run code on a developer's Windows or WSL machine when the developer signed…

Windows

The Hacker News
The Hacker News Vulnerabilities

Node.js Brotli Decoder Bug Could Allow Remote Code Execution in All Supported Versions

Node.js released security updates on October 21 for its three supported release lines, 22.x, 24.x and 26.x, fixing 10 flaws. The most serious is a bug in the B…

The Hacker News
The Hacker News Vulnerabilities

New QPACK Flaws Can Crash HTTP/3 Servers, Trigger Up to 4,000-Fold Memory Amplification

A remote attacker who has not logged in can crash many HTTP/3 web servers with a single connection, security firm FoxIO disclosed, releasing working proof-of-c…

The Hacker News
The Hacker News Vulnerabilities

Someone Tried to Exploit PHP2Shell 4 Days Before the Vulnerabilities Were Publicly Disclosed

Amazon's Threat Intelligence team on Wednesday said it detected an attempt to exploit the newly disclosed PHP2Shell vulnerabilities on October 17, 2026, agains…

AWS

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

AI Assistant Flaw Could Let WhatsApp Users Run Commands on Your Computer

A flaw in Kiro Crew, an open-source AI assistant, could let someone in a WhatsApp chat make the assistant carry out tasks on its owner’s computer.

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

Certificate Authority Flaw Requires More Than a Browser Fix

A flaw at certificate authority eMudhra could let attackers create fake website certificates that some software would accept as real.

The Hacker News
The Hacker News Vulnerabilities

Critical GitLab Flaw (CVSS 10.0) Could Allow Unauthenticated RCE Across 12 Years of Releases

GitLab released fixes on October 21 for a flaw that lets an attacker run code on a self-managed server without logging in, and it affects every version of the …

GitLab

BleepingComputer
BleepingComputer Breaches & leaks

CISA: Hackers chain Plex flaws in Plex2Shell attacks to breach servers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that attackers are actively exploiting four vulnerabilities in Plex Media Server.…

The Record
The Record Vulnerabilities

PHP says AI review of critical bugs first sparked alarm in August, but signs surfaced in 2024

In a lengthy statement about two critical vulnerabilities, the PHP Foundation explained how one dated to 2024, how a recent third-party review by AI companies …

PHP

The Record
The Record Vulnerabilities

Hundreds of websites taken offline as concern grows over two PHP vulnerabilities

The maintainers of the globally used PHP scripting language released patches for two vulnerabilities after alerting users that the bugs were severe.

PHP

BleepingComputer
BleepingComputer Vulnerabilities

PHP ships emergency patches for critical PHP2Shell flaws

The PHP security team released emergency security patches for two critical remote code execution (RCE) vulnerabilities (CVE-2026-109618 and CVE-2026-109619) tr…

PHP