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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...

In a world that's growing increasingly digital, Magecart attacks have emerged as a key cybersecurity threat to e-commerce sites. Magecart, which is in the news a lot lately, is an umbrella term given to 12 different cyber criminal groups that are specialized in secretly implanting a special piece of code on compromised e-commerce sites with an intent to steal payment card details of their customers. The malicious code—well known as JS sniffers, JavaScript sniffers, or online credit card skimmers—has been designed to intercept users' input on compromised websites to steal customers' bank card numbers, names, addresses, login details, and passwords in real time. Magecart made headlines last year after cybercriminals conducted several high-profile heists involving major companies including British Airways , Ticketmaster , and Newegg , with online bedding retailers MyPillow and Amerisleep being recent victims of these attacks. The initial success of these attacks alread...

Roblox developers are the target of a persistent campaign that seeks to compromise systems through bogus npm packages, once again underscoring how threat actors continue to exploit the trust in the open-source ecosystem to deliver malware. "By mimicking the popular 'noblox.js' library, attackers have published dozens of packages designed to steal sensitive data and compromise systems," Checkmarx researcher Yehuda Gelb said in a technical report. Roblox is an online game platform and game creation system with nearly 80 million daily active users , and thus makes for an attractive target for threat actors. It was launched in September 2006 for Windows, before debuting in other platforms, including iOS, Android, Xbox One, Meta Quest, and PlayStation 4. Details about the activity were first documented by ReversingLabs in August 2023 as part of a campaign that delivered a stealer called Luna Token Grabber, which it said was a "replay of an attack uncovered two ...

Another batch of 25 malicious JavaScript libraries have made their way to the official NPM package registry with the goal of stealing Discord tokens and environment variables from compromised systems, more than two months after  17 similar packages  were taken down. The libraries in question leveraged typosquatting techniques and masqueraded as other legitimate packages such as colors.js, crypto-js, discord.js, marked, and  noblox.js , DevOps security firm JFrog said, attributing the packages as the work of "novice malware authors." The complete list of packages is below – node-colors-sync (Discord token stealer) color-self (Discord token stealer) color-self-2 (Discord token stealer) wafer-text (Environment variable stealer) wafer-countdown (Environment variable stealer) wafer-template (Environment variable stealer) wafer-darla (Environment variable stealer) lemaaa (Discord token stealer) adv-discord-utility (Discord token stealer) tools-for-discord (Disco...

Nowadays, more malware developers are using unconventional programming languages to bypass advanced detection systems. The Node.js malware Lu0Bot is a testament to this trend. By targeting a platform-agnostic runtime environment common in modern web apps and employing multi-layer obfuscation, Lu0Bot is a serious threat to organizations and individuals. Although currently, the malware has low activity, the attackers are likely waiting for the right moment to strike.  To be prepared for any future scenario, a team of analysts conducted an in-depth technical analysis of one of the recent samples of Lu0Bot and  published an article  documenting their process. Here's an overview of their research. Static analysis of the Lu0Bot sample  The  sample  under investigation used an SFX packer, a self-extracting archive that can be opened with any archive utility. Its contents were explored individually. Archive contents 1. BAT-file The content of the BAT fil...

The Ripple cryptocurrency npm JavaScript library named xrpl.js has been compromised by unknown threat actors as part of a software supply chain attack designed to harvest and exfiltrate users' private keys. The malicious activity has been found to affect five different versions of the package: 4.2.1, 4.2.2, 4.2.3, 4.2.4, and 2.14.2. The issue has been addressed in versions 4.2.5 and 2.14.3. xrpl.js is a popular JavaScript API for interacting with the XRP Ledger blockchain, also called the Ripple Protocol, a cryptocurrency platform launched by Ripple Labs in 2012. The package has been downloaded over 2.9 million times to date, attracting more than 135,000 weekly downloads. "The official XPRL (Ripple) NPM package was compromised by sophisticated attackers who put in a backdoor to steal cryptocurrency private keys and gain access to cryptocurrency wallets," Aikido Security's Charlie Eriksen said . The malicious code changes have been found to be introduced by a...

Cybersecurity researchers have disclosed details of an active malware campaign called Stealit that has leveraged Node.js' Single Executable Application (SEA) feature as a way to distribute its payloads. According to Fortinet FortiGuard Labs, select iterations have also employed the open-source Electron framework to deliver the malware. It's assessed that the malware is being propagated through counterfeit installers for games and VPN applications that are uploaded to file-sharing sites such as Mediafire and Discord. SEA is a feature that allows Node.js applications to be packaged and distributed as a standalone executable, even on systems without Node.js installed. "Both approaches are effective for distributing Node.js-based malware, as they allow execution without requiring a pre-installed Node.js runtime or additional dependencies," security researchers Eduardo Altares and Joie Salvio said in a report shared with The Hacker News. On a dedicated website, the...

A critical security flaw has been disclosed in the  llama_cpp_python  Python package that could be exploited by threat actors to achieve arbitrary code execution. Tracked as  CVE-2024-34359  (CVSS score: 9.7), the flaw has been codenamed Llama Drama by software supply chain security firm Checkmarx. "If exploited, it could allow attackers to execute arbitrary code on your system, compromising data and operations," security researcher Guy Nachshon  said . llama_cpp_python, a Python binding for the  llama.cpp library , is a popular package with over 3 million downloads to date, allowing developers to integrate AI models with Python.  Security researcher Patrick Peng (retr0reg) has been credited with discovering and reporting the flaw, which has been addressed in version 0.2.72. The  core issue  stems from the misuse of the Jinja2 template engine within the llama_cpp_python package, allowing for server-side template injection that le...

Cybersecurity researchers have discovered a set of 10 malicious npm packages that are designed to deliver an information stealer targeting Windows, Linux, and macOS systems. "The malware uses four layers of obfuscation to hide its payload, displays a fake CAPTCHA to appear legitimate, fingerprints victims by IP address, and downloads a 24MB PyInstaller-packaged information stealer that harvests credentials from system keyrings, browsers, and authentication services across Windows, Linux, and macOS," Socket security researcher Kush Pandya said . The npm packages were uploaded to the registry on July 4, 2025, and accumulated over 9,900 downloads collectively - deezcord.js dezcord.js dizcordjs etherdjs ethesjs ethetsjs nodemonjs react-router-dom.js typescriptjs zustand.js The multi-stage credential theft operation manifested in the form of various typosquatted packages impersonating popular npm libraries such as TypeScript, discord.js, ethers.js, nodemon, react...

Here's New Year's first Ransomware: Ransom32 . A new Ransomware-as-a-service, dubbed Ransom32 , has been spotted that for the first time uses a ransomware written in JavaScript to infect Mac, Windows as well as Linux machines. Ransom32 allows its operators to deploy the malware very quickly and easily. It has a dashboard that enables operators to designate their Bitcoin addresses to which the ransom can be sent. The dashboard also shows stats about how much Bitcoins they have made. In short, this new ransomware-as-a-service is so simple, and efficient at the same time, that anyone can download and distribute his/her own copy of the ransomware executable as long as he/she have a Bitcoin address. The copy of Ransom32 was first analysed by Emsisoft, which found that the new ransomware family, which embedded in a self-extracting WinRAR archive, is using the NW.js platform for infiltrating the victims' computers, and then holding their files by encrypting the...

Microsoft is calling attention to an ongoing malvertising campaign that makes use of Node.js to deliver malicious payloads capable of information theft and data exfiltration. The activity, first detected in October 2024, uses lures related to cryptocurrency trading to trick users into installing a rogue installer from fraudulent websites that masquerade as legitimate software like Binance or TradingView. The downloaded installer comes embedded with a dynamic-link library ("CustomActions.dll") that's responsible for harvesting basic system information using Windows Management Instrumentation (WMI) and setting up persistence on the host via a scheduled task. In an attempt to keep up the ruse, the DLL launches a browser window via " msedge_proxy.exe " that displays the legitimate cryptocurrency trading website. It's worth noting that "msedge_proxy.exe" can be used to display any website as a web application. The scheduled task, in the meanwhile...

Cybersecurity researchers are alerting to a software supply chain attack targeting the popular @solana/web3.js npm library that involved pushing two malicious versions capable of harvesting users' private keys with an aim to drain their cryptocurrency wallets. The attack has been detected in versions 1.95.6 and 1.95.7. Both these versions are no longer available for download from the npm registry. The package is widely used, attracting over 400,000 weekly downloads. "These compromised versions contain injected malicious code that is designed to steal private keys from unsuspecting developers and users, potentially enabling attackers to drain cryptocurrency wallets," Socket said in a report. @solana/web3.js is an npm package that can be used to interact with the Solana JavaScript software development kit (SDK) for building Node.js and web apps. According to Datadog security researcher Christophe Tafani-Dereeper , "the backdoor inserted in v1.95.7 adds an ...

More than a dozen malicious packages have been discovered on the npm package repository since the start of August 2023 with capabilities to deploy an open-source information stealer called  Luna Token Grabber  on systems belonging to Roblox developers. The ongoing campaign, first detected on August 1 by ReversingLabs, employs modules that masquerade as the legitimate package  noblox.js , an API wrapper that's used to create scripts that interact with the Roblox gaming platform. The software supply chain security company described the activity as a "replay of an attack  uncovered  two years ago" in October 2021. "The malicious packages [...] reproduce code from the legitimate noblox.js package but add malicious, information-stealing functions," software threat researcher Lucija Valentić  said  in a Tuesday analysis. The packages were cumulatively downloaded 963 times before they were taken down. The names of the rogue packages are as follows - n...

A critical security flaw has been disclosed in the Next.js React framework that could be potentially exploited to bypass authorization checks under certain conditions. The vulnerability, tracked as CVE-2025-29927 , carries a CVSS score of 9.1 out of 10.0. "Next.js uses an internal header x-middleware-subrequest to prevent recursive requests from triggering infinite loops," Next.js said in an advisory.  "It was possible to skip running middleware , which could allow requests to skip critical checks—such as authorization cookie validation—before reaching routes." It's worth noting that CVE-2025-29927 impacts only self-hosted versions that use "next start" with "output: standalone." Next.js apps hosted on Vercel and Netlify, or deployed as static exports, are not affected. The shortcoming has been addressed in versions 12.3.5, 13.5.9, 14.2.25, and 15.2.3. If patching is not an option, it's recommended that users prevent external user ...