Latest Cybersecurity News and Articles

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Two Compromised joyfill npm Packages Run RAT When Imported Into Node.js

Beta release versions of two npm packages in the @joyfill namespace have been compromised to deliver a remote access trojan (RAT) associated with the DEV#POPPER malware family. The list of affected packages is as follows - @joyfill/layouts@0.1.2-2773.beta.0 @joyfill/components@4.0.0-rc24-2773-beta.4 The two packages "contain an import-time JavaScript implant that resolves encrypted code

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Claude AI Just Cracked a Post-Quantum Test Scheme and Found a Faster 7-Round AES Attack

Anthropic says Claude Mythos Preview helped derive an end-to-end key-recovery attack against HAWK-256 and a 200- to 800-fold speedup for an attack on seven-round AES-128. The HAWK attack exploits a previously unused symmetry in the lattice behind the signature scheme. Anthropic's released implementation gives an expected end-to-end runtime of about three hours and 42 minutes on a 96-core server

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Tengu Botnet Reboots Compromised Linux Devices When Defenders Kill Its Process

A new Mirai-derived botnet called Tengu can use a compromised Linux device's hardware watchdog to trigger a reboot when defenders kill its main process. If that happens, Tengu's other persistence mechanisms get another chance to relaunch it. Nozomi Networks Labs observed the dropper reaching its honeypots through Telnet credential brute force. Tengu supports 25 distributed denial-of-service (

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Cyera Acquiring Oasis Security in $1 Billion Deal

Oasis Security recently raised $120 million in Series B funding for its agentic access management platform. The post Cyera Acquiring Oasis Security in $1 Billion Deal appeared first on SecurityWeek.

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24,650 Internet-Exposed BMCs Disclose IPMI Password Hashes Before Login

Cybersecurity researchers have sounded an alert after finding more than 36,000 Baseboard Management Controller (BMC) management interfaces exposing Intelligent Platform Management Interface (IPMI) protocol to the public internet. Of the 36,872 internet-exposed server-management interfaces running IPMI, 24,650 have been found to disclose password-derived authentication hashes before login due to

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Apple Patches 87 Vulnerabilities in iOS, 155 in macOS Tahoe

Apple announced that dozens of vulnerabilities have been patched in each of its operating systems. The post Apple Patches 87 Vulnerabilities in iOS, 155 in macOS Tahoe appeared first on SecurityWeek.

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JFrog Confirms OpenAI Models Exploited Artifactory Zero-Day Before Hugging Face Breach

JFrog has confirmed that OpenAI models exploited a zero-day in self-hosted Artifactory while trying to reach the open internet from a sealed evaluation environment. Artifactory is JFrog's software repository manager. OpenAI says the models then escalated privileges and moved laterally until they reached an internet-connected node. JFrog says it has since developed and released fixes for cloud

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OT Security Startup Frenos Raises $1.52 Million

The company will use the fresh investment to grow its customer success and AI R&D teams. The post OT Security Startup Frenos Raises $1.52 Million appeared first on SecurityWeek.

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Critical OpenWrt DHCPv6 Flaw Could Let Unauthenticated Attackers Run Code as Root

OpenWrt has shipped version 24.10.8 to close a critical DHCPv6 stack overflow and a wider set of remotely triggerable flaws in network services enabled by default. The critical issue, tracked as CVE-2026-53921 and rated 9.8 on CVSS 3.1 in OpenWrt's GitHub advisory, lets an unauthenticated attacker able to reach the DHCPv6 server overwrite a stack buffer in odhcpd through a crafted DHCPv6

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Nimbus Manticore Deploys NightLedger and Turns Victim Systems Into Covert Relays

The Iranian state-backed hacking group tracked as Nimbus Manticore (aka GalaxyGato, Mirage Kitten, Smoke Sandstorm, Subtle Snail, and UNC1549) has been attributed to a fresh set of attacks targeting entities across the Middle East, Africa, and South Asia. The intrusions involve the use of a previously undocumented Windows backdoor called NightLedger and two custom WebSocket tunnelers,

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Microsoft Unveils MAI-Cyber-1-Flash, Its First Cybersecurity AI Model 

The company claims MAI-Cyber-1-Flash tops Anthropic’s Mythos and OpenAI’s GPT-5.6 Sol in CyberGym testing. The post Microsoft Unveils MAI-Cyber-1-Flash, Its First Cybersecurity AI Model  appeared first on SecurityWeek.

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Act Security Emerges from Stealth to Fight the Patch Problem

Act Security tackles the spiraling patch problem caused by AI’s ability to find new vulnerabilities in existing cloud environments. The post Act Security Emerges from Stealth to Fight the Patch Problem appeared first on SecurityWeek.

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Hacker Conversations: Tal Kollander’s Journey From Black Hat to Hack Blocker

Tal Kollander’s history divides neatly into two halves: first as an active hacker and then as the block that stops hacks. The post Hacker Conversations: Tal Kollander’s Journey From Black Hat to Hack Blocker appeared first on SecurityWeek.

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Hush Security Raises $30 Million for AI Agent Governance

The startup will invest in expanding engineering and sales teams, accelerating ecosystem support, and expanding corporate partnerships. The post Hush Security Raises $30 Million for AI Agent Governance appeared first on SecurityWeek.

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Google Adopts New Threat Actor Naming System

The new two-word naming convention uses a memorable term utilized in public reporting and a cluster-categorization word. The post Google Adopts New Threat Actor Naming System appeared first on SecurityWeek.

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Critical TeamCity Flaw Could Let Attackers Run OS Commands Without Logging In

JetBrains is urging customers of on-premise versions of TeamCity to update to the latest version following the discovery of a critical security issue that could result in arbitrary code execution. The vulnerability, assigned CVE-2026-63077 (CVSS score: 9.8), affects all TeamCity On-Premises versions. It has been addressed in versions 2025.11.7 and 2026.1.3. TeamCity Cloud instances have already

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Researcher Says AI Helped Develop Linux Traffic-Control Race Into Root Exploit

STAR Labs has published a Linux kernel exploit that turns an ordinary local user into root on the CentOS Stream 9 build it targeted. The flaw, tracked as CVE-2026-53264 (CVSS score: 7.8), is a use-after-free race in the kernel's network traffic-control subsystem.Researcher Lee Jia Jie said artificial intelligence (AI) helped him find the bug and speed up exploit development. This is local

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Unpatched Fastjson Vulnerability Exploited in Attacks

The critical remote code execution bug can be exploited without authentication, under the library’s stock default configurations. The post Unpatched Fastjson Vulnerability Exploited in Attacks appeared first on SecurityWeek.

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Critical Arista VeloCloud Orchestrator Vulnerability Exploited as Zero-Day

Impacting on-premises deployments, the OS command injection allows attackers to access privileged internal functionality. The post Critical Arista VeloCloud Orchestrator Vulnerability Exploited as Zero-Day appeared first on SecurityWeek.

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Microsoft Says New Cybersecurity AI Model Helps MDASH Hit 95.95% at Half the Cost

Microsoft has launched its first cybersecurity-specific model inside MDASH, its multi-model vulnerability identification and remediation harness. The company says MDASH, using MAI-Cyber-1-Flash and GPT-5.4, scored 95.95% on CyberGym. It also claims the configuration costs 50% less than its current best MDASH combination of GPT-5.4, GPT-5.4 mini, and GPT-5.3 Codex. Access is limited to approved