#nodejs

The Metro Development Server, which is opened by the React Native CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection. This allows unauthenticated network attackers to send a POST request to the server and run arbitrary executables. On Windows, the attackers can also execute arbitrary shell commands with fully controlled arguments.

Cyberattacks are getting smarter and harder to stop. This week, hackers used sneaky tools, tricked trusted systems, and quickly took advantage of new security problems—some just hours after being found. No system was fully safe. From spying and fake job scams to strong ransomware and tricky phishing, the attacks came from all sides. Even encrypted backups and secure areas were put to the test.

### Summary Using `.t` (aka `.list`) with `{ sync: true }` to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. ### Details See: * https://github.com/isaacs/node-tar/issues/445 * https://github.com/isaacs/node-tar/pull/446 * Regression happened in https://github.com/isaacs/node-tar/commit/5330eb04bc43014f216e5c271b40d5c00d45224d ### PoC A: ```js import * as tar from 'tar' import fs from 'node:fs' fs.writeFileSync('tar.test.tmp', Buffer.alloc(1*1024)) // from readme const filesAdded = [] tar.c( { sync: true, file: 'tar.test.tmp.tar', onWriteEntry(entry) { // initially, it's uppercase and 0o644 console.log('adding', entry.path, entry.stat.mode.toString(8)) // make all the paths lowercase entry.path = entry.path.toLowerCase() // make the entry executable entry.stat.mode = 0o755 // in the archive, it's lowercase and 0o755 filesAdded.push([entr...

Cybersecurity researchers have uncovered yet another active software supply chain attack campaign targeting the npm registry with over 100 malicious packages that can steal authentication tokens, CI/CD secrets, and GitHub credentials from developers' machines. The campaign has been codenamed PhantomRaven by Koi Security. The activity is assessed to have begun in August 2025, when the first

In the "PhantomRaven" campaign, threat actors published 126 malicious npm packages that have flown under the radar, while collecting 86,000 downloads.

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

Threat actors tied to North Korea have been observed targeting the Web3 and blockchain sectors as part of twin campaigns tracked as GhostCall and GhostHire. According to Kaspersky, the campaigns are part of a broader operation called SnatchCrypto that has been underway since at least 2017. The activity is attributed to a Lazarus Group sub-cluster called BlueNoroff, which is also known as APT38,

Security, trust, and stability — once the pillars of our digital world — are now the tools attackers turn against us. From stolen accounts to fake job offers, cybercriminals keep finding new ways to exploit both system flaws and human behavior. Each new breach proves a harsh truth: in cybersecurity, feeling safe can be far more dangerous than being alert. Here’s how that false sense of security

A malicious network of YouTube accounts has been observed publishing and promoting videos that lead to malware downloads, essentially abusing the popularity and trust associated with the video hosting platform for propagating malicious payloads. Active since 2021, the network has published more than 3,000 malicious videos to date, with the volume of such videos tripling since the start of the

Cybersecurity researchers have discovered a self-propagating worm that spreads via Visual Studio Code (VS Code) extensions on the Open VSX Registry and the Microsoft Extension Marketplace, underscoring how developers have become a prime target for attacks. The sophisticated threat, codenamed GlassWorm by Koi Security, is the second such supply chain attack to hit the DevOps space within a span