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Critical Node.js Vulnerability Can Cause Server Crashes via async_hooks Stack Overflow

Critical Node.js Vulnerability Can Cause Server Crashes via async_hooks Stack Overflow

Jan 14, 2026 Application Security / Vulnerability
Node.js has released updates to fix what it described as a critical security issue impacting "virtually every production Node.js app" that, if successfully exploited, could trigger a denial-of-service (DoS) condition. "Node.js/V8 makes a best-effort attempt to recover from stack space exhaustion with a catchable error, which frameworks have come to rely on for service availability," Node.js's Matteo Collina and Joyee Cheung said in a Tuesday bulletin. "A bug that only reproduces when async_hooks are used would break this attempt, causing Node.js to exit with 7 directly without throwing a catchable error when recursions in user code exhaust the stack space. This makes applications whose recursion depth is controlled by unsanitized input vulnerable to denial-of-service attacks." At its core, the shortcoming stems from the fact that Node.js exits with code 7 (denoting an Internal Exception Handler Run-Time Failure ) instead of gracefully handling the...
Critical AdonisJS Bodyparser Flaw (CVSS 9.2) Enables Arbitrary File Write on Servers

Critical AdonisJS Bodyparser Flaw (CVSS 9.2) Enables Arbitrary File Write on Servers

Jan 06, 2026 Vulnerability / Web Security
Users of the " @adonisjs/bodyparser " npm package are being advised to update to the latest version following the disclosure of a critical security vulnerability that, if successfully exploited, could allow a remote attacker to write arbitrary files on the server. Tracked as CVE-2026-21440 (CVSS score: 9.2), the flaw has been described as a path traversal issue affecting the AdonisJS multipart file handling mechanism. "@adonisjs/bodyparser" is an npm package associated with AdonisJS, a Node.js framework for developing web apps and API servers with TypeScript. The library is used to process AdonisJS HTTP request body . "If a developer uses MultipartFile.move() without the second options argument or without explicitly sanitizing the filename, an attacker can supply a crafted filename value containing traversal sequences, writing to a destination path outside the intended upload directory," the project maintainers said in an advisory released last week. ...
Simple bug could lead to RCE flaw on apps built with Electron Framework

Simple bug could lead to RCE flaw on apps built with Electron Framework

May 14, 2018
A critical remote code execution vulnerability has been discovered in the popular Electron web application framework that could allow attackers to execute malicious code on victims' computers. Electron is an open source app development framework that powers thousands of widely-used desktop applications including WhatsApp, Skype, Signal, Wordpress, Slack, GitHub Desktop, Atom, Visual Studio Code, and Discord. Besides its own modules, Electron framework also allows developers to create hybrid desktop applications by integrating Chromium and Node.js framework through APIs. Since Node.js is a robust framework for server-side applications, having access to its APIs indirectly gives Electron-based apps more control over the operating system installed on the server. To prevent unauthorised or unnecessary access to Node.js APIs, Electron framework by default sets the value of "webviewTag" to false in its "webPreferences" configuration file, which then sets ...
cyber security

2026 Annual Threat Report: A Defender's Playbook From the Front Lines

websiteSentinelOneEnterprise Security / Cybersecurity
Learn how modern attackers bypass MFA, exploit gaps, weaponize automation, run 8-phase intrusions, and more.
cyber security

Anthropic Won't Release Mythos. But Claude Is Already in Your Salesforce

websiteRecoSaaS Security /AI Security
The real enterprise AI risk isn't the model they locked away. It's the one already inside.
Critical RSC Bugs in React and Next.js Allow Unauthenticated Remote Code Execution

Critical RSC Bugs in React and Next.js Allow Unauthenticated Remote Code Execution

Dec 03, 2025 Vulnerability / Cloud Security
A maximum-severity security flaw has been disclosed in React Server Components (RSC) that, if successfully exploited, could result in remote code execution. The vulnerability, tracked as CVE-2025-55182, carries a CVSS score of 10.0. The vulnerability has been codenamed React2shell . It allows "unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints," the React Team said in an alert issued today. "Even if your app does not implement any React Server Function endpoints, it may still be vulnerable if your app supports React Server Components." According to cloud security firm Wiz , the issue is a case of logical deserialization that stems from processing RSC payloads in an unsafe manner. As a result, an unauthenticated attacker could craft a malicious HTTP request to any Server Function endpoint that, when deserialized by React, achieves execution of arbitrary JavaScript code on the server. ...
Critical 'BatBadBut' Rust Vulnerability Exposes Windows Systems to Attacks

Critical 'BatBadBut' Rust Vulnerability Exposes Windows Systems to Attacks

Apr 10, 2024 Software Security / Vulnerability
A critical security flaw in the Rust standard library could be exploited to target Windows users and stage command injection attacks. The vulnerability, tracked as  CVE-2024-24576 , has a CVSS score of 10.0, indicating maximum severity. That said, it only impacts scenarios where batch files are invoked on Windows with untrusted arguments. "The Rust standard library did not properly escape arguments when invoking batch files (with the bat and cmd extensions) on Windows using the Command API," the Rust Security Response working group  said  in an advisory released on April 9, 2024. "An attacker able to control the arguments passed to the spawned process could execute arbitrary shell commands by bypassing the escaping." The flaw impacts all versions of Rust before 1.77.2. Security researcher  RyotaK  has been credited with discovering and reporting the bug to the CERT Coordination Center ( CERT/CC ). RyotaK said the vulnerability – codenamed BatBadBut – impa...
CERT/CC Warns binary-parser Bug Allows Node.js Privilege-Level Code Execution

CERT/CC Warns binary-parser Bug Allows Node.js Privilege-Level Code Execution

Jan 21, 2026 Open Source / Vulnerability
A security vulnerability has been disclosed in the popular binary-parser npm library that, if successfully exploited, could result in the execution of arbitrary JavaScript. The vulnerability, tracked as CVE-2026-1245 (CVSS score: 6.5), affects all versions of the module prior to version 2.3.0 , which addresses the issue. Patches for the flaw were released on November 26, 2025. Binary-parser is a widely used parser builder for JavaScript that allows developers to parse binary data. It supports a wide range of common data types, including integers, floating-point values, strings, and arrays. The package attracts approximately 13,000 downloads on a weekly basis. According to an advisory released by the CERT Coordination Center (CERT/CC), the vulnerability has to do with a lack of sanitization of user-supplied values, such as parser field names and encoding parameters, when the JavaScript parser code is dynamically generated at runtime using the "Function" constructor. ...
Critical Bug Reported in NPM Package With Millions of Downloads Weekly

Critical Bug Reported in NPM Package With Millions of Downloads Weekly

Sep 13, 2021
A widely used NPM package called ' Pac-Resolver ' for the JavaScript programming language has been remediated with a fix for a high-severity remote code execution vulnerability that could be abused to run malicious code inside Node.js applications whenever HTTP requests are sent.  The flaw, tracked as  CVE-2021-23406 , has a severity rating of 8.1 on the CVSS vulnerability scoring system and affects Pac-Resolver versions before 5.0.0. A Proxy Auto-Configuration ( PAC ) file is a JavaScript function that determines whether web browser requests should be routed directly to the destination or forwarded to a web proxy server for a given hostname. PAC files are how proxy rules are distributed in enterprise environments. "This package is used for PAC file support in  Pac-Proxy-Agent , which is used in turn in  Proxy-Agent , which then used all over the place as the standard go-to package for HTTP proxy auto-detection and configuration in Node.js," Tim Perry  said...
Critical vm2 Node.js Flaw Allows Sandbox Escape and Arbitrary Code Execution

Critical vm2 Node.js Flaw Allows Sandbox Escape and Arbitrary Code Execution

Jan 28, 2026 Vulnerability / Open Source
A critical sandbox escape vulnerability has been disclosed in the popular vm2 Node.js library that, if successfully exploited, could allow attackers to run arbitrary code on the underlying operating system. The vulnerability, tracked as CVE-2026-22709 , carries a CVSS score of 9.8 out of 10.0 on the CVSS scoring system. "In vm2 for version 3.10.0, Promise.prototype.then Promise.prototype.catch callback sanitization can be bypassed," vm2 maintainer Patrik Simek said . "This allows attackers to escape the sandbox and run arbitrary code." vm2 is a Node.js library used to run untrusted code within a secure sandboxed environment by intercepting and proxying JavaScript objects to prevent sandboxed code from accessing the host environment. The newly discovered flaw stems from the library's improper sanitization of Promise handlers , which creates an escape vector that results in the execution of arbitrary code outside the sandbox boundaries. "The critical...
North Korea-linked Actors Exploit React2Shell to Deploy New EtherRAT Malware

North Korea-linked Actors Exploit React2Shell to Deploy New EtherRAT Malware

Dec 09, 2025 Vulnerability / Malware
Threat actors with ties to North Korea have likely become the latest to exploit the recently disclosed critical React2Shell security flaw in React Server Components (RSC) to deliver a previously undocumented remote access trojan dubbed EtherRAT . "EtherRAT leverages Ethereum smart contracts for command-and-control (C2) resolution, deploys five independent Linux persistence mechanisms, and downloads its own Node.js runtime from nodejs.org," Sysdig said in a report published Monday. The cloud security firm said the activity exhibits significant overlap with a long-running campaign codenamed Contagious Interview , which has been observed leveraging the EtherHiding technique to distribute malware since February 2025. Contagious Interview is the name given to a series of attacks in which blockchain and Web3 developers, among others, are targeted through fake job interviews, coding assignments, and video assessments, leading to the deployment of malware. These efforts typi...
Critical n8n Vulnerability (CVSS 10.0) Allows Unauthenticated Attackers to Take Full Control

Critical n8n Vulnerability (CVSS 10.0) Allows Unauthenticated Attackers to Take Full Control

Jan 07, 2026 Vulnerability / Automation
Cybersecurity researchers have disclosed details of yet another maximum-severity security flaw in n8n , a popular workflow automation platform, that allows an unauthenticated remote attacker to gain complete control over susceptible instances. The vulnerability, tracked as CVE-2026-21858 (CVSS score: 10.0), has been codenamed Ni8mare by Cyera Research Labs. Security researcher Dor Attias has been acknowledged for discovering and reporting the flaw on November 9, 2025. "A vulnerability in n8n allows an attacker to access files on the underlying server through execution of certain form-based workflows," n8n said in an advisory published today. "A vulnerable workflow could grant access to an unauthenticated remote attacker. This could result in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage." With the latest development, n8n has disclosed four critical vulnerabili...
Rogue Developer Infects Widely Used NodeJS Module to Steal Bitcoins

Rogue Developer Infects Widely Used NodeJS Module to Steal Bitcoins

Nov 27, 2018
A widely used third-party NodeJS module with nearly 2 million downloads a week was compromised after one of its open-source contributor gone rogue, who infected it with a malicious code that was programmed to steal funds stored in Bitcoin wallet apps. The Node.js library in question is "Event-Stream," a toolkit that makes it easy for developers to create and work with streams, a collection of data in Node.js — just like arrays or strings. The malicious code detected earlier this week was added to Event-Stream version 3.3.6, published on September 9 via NPM repository , and had since been downloaded by nearly 8 million application programmers. Event-Stream module for Node.js was originally created by Dominic Tarr, who maintained the Event-Stream library for a long time, but handed over the development and maintenance of the project several months ago to an unknown programmer, called "right9ctrl." Apparently, right9ctrl gained Dominic's trust by making...
April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More

April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More

Apr 15, 2026 Vulnerability / Data Breach
A number of critical vulnerabilities impacting products from Adobe, Fortinet, Microsoft, and SAP have taken center stage in April's Patch Tuesday releases. Topping the list is an SQL injection vulnerability impacting SAP Business Planning and Consolidation and SAP Business Warehouse ( CVE-2026-27681 , CVSS score: 9.9) that could result in the execution of arbitrary database commands. "The vulnerable ABAP program allows a low-privileged user to upload a file with arbitrary SQL statements that will then be executed," Onapsis said in an advisory. In a potential attack scenario, a bad actor could abuse the affected upload-related functionality to run malicious SQL against BW/BPC data stores, extract sensitive data, and delete or corrupt database content. "Manipulated planning figures, broken reports, or deleted consolidation data can undermine close processes, executive reporting, and operational planning," Pathlock said . "In the wrong hands, t...
Critical Flaw Hits Popular Windows Apps Built With Electron JS Framework

Critical Flaw Hits Popular Windows Apps Built With Electron JS Framework

Jan 24, 2018
A critical remote code execution vulnerability has been reported in Electron —a popular web application framework that powers thousands of widely-used desktop applications including Skype, Signal, Wordpress and Slack—that allows for remote code execution. Electron is an open-source framework that is based on Node.js and Chromium Engine and allows app developers to build cross-platform native desktop applications for Windows, macOS and Linux, without knowledge of programming languages used for each platform. The vulnerability, assigned as the number CVE-2018-1000006, affects only those apps that run on Microsoft Windows and register themselves as the default handler for a protocol like myapp://. "Such apps can be affected regardless of how the protocol is registered, e.g. using native code, the Windows registry, or Electron's app.setAsDefaultProtocolClient API," Electron says in an advisory published Monday. The Electron team has also confirmed that applications...
Flowise AI Agent Builder Under Active CVSS 10.0 RCE Exploitation; 12,000+ Instances Exposed

Flowise AI Agent Builder Under Active CVSS 10.0 RCE Exploitation; 12,000+ Instances Exposed

Apr 07, 2026 Artificial Intelligence / Vulnerability
Threat actors are exploiting a maximum-severity security flaw in Flowise , an open-source artificial intelligence (AI) platform, according to new findings from VulnCheck. The vulnerability in question is CVE-2025-59528 (CVSS score: 10.0), a code injection vulnerability that could result in remote code execution. "The CustomMCP node allows users to input configuration settings for connecting to an external MCP (Model Context Protocol) server," Flowise said in an advisory released in September 2025. "This node parses the user-provided mcpServerConfig string to build the MCP server configuration. However, during this process, it executes JavaScript code without any security validation." Flowise noted that successful exploitation of the vulnerability can allow access to dangerous modules such as child_process (command execution) and fs (file system), as it runs with full Node.js runtime privileges. Put differently, a threat actor who weaponizes the flaw can execu...
'Ridiculous' Bug in Popular Antivirus Allows Hackers to Steal all Your Passwords

'Ridiculous' Bug in Popular Antivirus Allows Hackers to Steal all Your Passwords

Jan 12, 2016
If you have installed Trend Micro's Antivirus on your Windows computer, then Beware. Your computer can be remotely hijacked, or infected with any malware by even through a website – Thanks to a critical vulnerability in Trend Micro Security Software. The Popular antivirus maker and security firm Trend Micro has released an emergency patch to fix critical flaws in its anti-virus product that allow hackers to execute arbitrary commands remotely as well as steal your saved password from Password Manager built into its AntiVirus program. The password management tool that comes bundled with its main antivirus is used to store passwords by users and works exactly like any other password manager application. Even Websites Can Hack Into Your Computer Google's Project Zero security researcher, Tavis Ormandy, discovered the remote code execution flaw in Trend Micro Antivirus Password Manager component, allowing hackers to steal users’ passwords. In short, o...
Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Apr 15, 2026 Vulnerability / Patch Tuesday
Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been actively exploited in the wild. Of these 169 vulnerabilities, 157 are rated Important, eight are rated Critical, three are rated Moderate, and one is rated Low in severity. Ninety-three of the flaws are classified as privilege escalation, followed by 21 information disclosure, 21 remote code execution, 14 security feature bypass, 10 spoofing, and nine denial-of-service vulnerabilities. Also included among the 169 flaws are four non-Microsoft issued CVEs impacting AMD (CVE-2023-20585), Node.js (CVE-2026-21637), Windows Secure Boot (CVE-2026-25250), and Git for Windows (CVE-2026-32631). The updates are in addition to 78 vulnerabilities that have been addressed in its Chromium-based Edge browser since the update that was released last month . T...
React2Shell Exploitation Escalates into Large-Scale Global Attacks, Forcing Emergency Mitigation

React2Shell Exploitation Escalates into Large-Scale Global Attacks, Forcing Emergency Mitigation

Dec 12, 2025 Vulnerability / Threat Intelligence
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged federal agencies to patch the recent React2Shell vulnerability by December 12, 2025, amid reports of widespread exploitation. The critical vulnerability, tracked as CVE-2025-55182 (CVSS score: 10.0), affects the React Server Components (RSC) Flight protocol. The underlying cause of the issue is an unsafe deserialization that allows an attacker to inject malicious logic that the server executes in a privileged context. It also affects other frameworks, including Next.js, Waku, Vite, React Router, and RedwoodSDK. "A single, specially crafted HTTP request is sufficient; there is no authentication requirement, user interaction, or elevated permissions involved," Cloudforce One, Cloudflare's threat intelligence team, said . "Once successful, the attacker can execute arbitrary, privileged JavaScript on the affected server." Since its public disclosure on December 3, 2025, the shortcoming...
Over 70 Malicious npm and VS Code Packages Found Stealing Data and Crypto

Over 70 Malicious npm and VS Code Packages Found Stealing Data and Crypto

May 26, 2025 Cybersecurity / Cryptocurrency
As many as 60 malicious npm packages have been discovered in the package registry with malicious functionality to harvest hostnames, IP addresses, DNS servers, and user directories to a Discord-controlled endpoint. The packages, published under three different accounts, come with an install‑time script that's triggered during npm install, Socket security researcher Kirill Boychenko said in a report published last week. The libraries have been collectively downloaded over 3,000 times. "The script targets Windows, macOS, or Linux systems, and includes basic sandbox‑evasion checks, making every infected workstation or continuous‑integration node a potential source of valuable reconnaissance," the software supply chain security firm said . The names of the three accounts, each of which published 20 packages within an 11-day time period, are listed below. The accounts no longer exist on npm - bbbb335656 cdsfdfafd1232436437, and  sdsds656565 The malicious code, per So...
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