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GemStuffer Abuses 150+ RubyGems to Exfiltrate Scraped U.K. Council Portal Data

Cybersecurity researchers are calling attention to a new campaign dubbed GemStuffer that has targeted the RubyGems repository with more than 150 gems that use the registry as a data exfiltration channel rather than for malware distribution. "The packages do not appear designed fo

The Hacker News Vulnerability

Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws

Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed as publicly known or under active attack. Of the 138 flaws, 30 are rated Critical, 104 are rated Important, three are rated Moderate, and

The Hacker News Vulnerability

Most Remediation Programs Never Confirm the Fix Actually Worked

Security teams have never had better visibility into their environments and never been worse at confirming what they fix stays fixed. Mandiant's M-Trends 2026 report puts the mean time to exploit at an estimated negative seven days. The Verizon 2025 DBIR puts median time to remed

The Hacker News General

[Webinar] How Modern Attack Paths Cross Code, Pipelines, and Cloud

TL;DR: Stop chasing thousands of "toast" alerts. Join experts from Wiz to learn how hackers connect tiny flaws to build a "Lethal Chain" to your data—and how to break it. Register for the Strategic Briefing Here. Most security tools work like a smoke alarm that goes off every tim

The Hacker News APT

Azerbaijani Energy Firm Hit by Repeated Microsoft Exchange Exploitation

A threat actor with affiliations to China has been linked to a "multi-wave intrusion" targeting an unnamed Azerbaijani oil and gas company between late December 2025 and late February 2026, marking an expansion of its targeting. The activity has been attributed by Bitdefender wit

The Hacker News Vulnerability

Microsoft's MDASH AI System Finds 16 Windows Flaws Fixed in Patch Tuesday

Microsoft has unveiled a new multi-model artificial intelligence (AI)-driven system called MDASH to facilitate vulnerability discovery and remediation at scale, adding that it's being tested by some customers as part of a limited private preview. MDASH, short for multi-model agen

The Hacker News Vulnerability

18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCE

Cybersecurity researchers have disclosed multiple security vulnerabilities impacting NGINX Plus and NGINX Open, including a critical flaw that remained undetected for 18 years. The vulnerability, discovered by depthfirst, is a heap buffer overflow issue impacting ngx_http_rewrite

The Hacker News Vulnerability

New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption

Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia, the

The Hacker News Vulnerability

Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more zero-days involving a BitLocker bypass and a privilege escalation impacting Windows Collaborative Translation Framework (CTFMON). The security defects have been

The Hacker News Vulnerability

How AI Hallucinations Are Creating Real Security Risks

AI hallucinations are introducing serious security risks into critical infrastructure decision-making by exploiting human trust through highly confident yet incorrect outputs. When an AI model lacks certainty, it doesn’t have a mechanism to recognize that. Instead, it generates t

The Hacker News APT

PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure

Threat actors have been observed attempting to exploit a recently disclosed security vulnerability in PraisonAI, an open-source multi-agent orchestration framework, within four hours of its public disclosure. The vulnerability in question is CVE-2026-44338 (CVSS score: 7.3), a ca

The Hacker News APT

Ghostwriter Targets Ukrainian Government With Geofenced PDF Phishing, Cobalt Strike

The Belarus-aligned threat group known as Ghostwriter has been attributed to a fresh set of attacks targeting governmental organizations in Ukraine. Active since at least 2016, Ghostwriter has been linked to both cyber espionage and influence operations targeting neighboring coun

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