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Ghostwriter Targets Ukrainian Government With Geofenced PDF Phishing, Cobalt Strike

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… 

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

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

Ravie LakshmananMay 14, 2026Vulnerability / API Security 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 public disclosure. The vulnerability… 

Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

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… 

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

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

Ravie LakshmananMay 14, 2026Vulnerability / Linux 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… 

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

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

Ravie LakshmananMay 14, 2026Vulnerability / Web Server 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,… 

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

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

Ravie LakshmananMay 13, 2026Vulnerability / Artificial Intelligence 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… 

[Webinar] Why Your AppSec Tools Miss the “Lethal Path” (and How to Fix It)

[Webinar] Why Your AppSec Tools Miss the “Lethal Path” (and How to Fix It)

The Hacker NewsMay 13, 2026AppSec / Webinar TL;DR: Stop chasing thousands of “toast” alerts. Join experts from Wiz and Okta/GitLab to learn how hackers connect tiny flaws to build a “Lethal Chain” to your data—and…