Cybersecurity researchers have disclosed details of a new Linux malware dubbed Showboat that has been put to use in a campaign targeting a telecommunications provider in the Middle East since at least mid-2022.
"Showboat is a modular post-exploitation framework designed for Linux systems, capable of spawning a remote shell, transferring files, and functioning as a SOCKS5 proxy," LumenView the full article
This week starts small.
A token leaks. A bad package slips in. A login trick works. An old tool shows up again. At first, it feels like the usual mess. Then you see the pattern: attackers are not always breaking in. They are using the parts we already trust.
That is what makes it worrying. The danger is in normal things now - updates, apps, cloud buttons, support chats, trusted accounts. AIView the full article
Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild.
The former, tracked as CVE-2026-41091, is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM privileges.
"Improper link resolution before file access ('link following') in Microsoft DefenderView the full article
Consider a cached access key on a single Windows machine. It got there the way most cached credentials do - a user logged in, and the key stored itself automatically. Standard AWS behavior. No one misconfigured anything or violated a policy. Yet that single key, which was easily accessible to a minor-league attacker, could have opened a path to some 98% of entities in the company's cloudView the full article
Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years.
The vulnerability, tracked as CVE-2026-46333 (CVSS score: 5.5), is a case of improper privilege management that could permit an unprivileged local user to disclose sensitive files and execute arbitrary commands as root on default installations of several majorView the full article
GitHub on Wednesday officially confirmed that the breach of its internal repositories was the result of a compromise of an employee device involving a poisoned version of the Nx Console Microsoft Visual Studio Code (VS Code) extension.
The development comes as the Nx team revealed that the extension, nrwl.angular-console, was breached after one of its developers' systems was hacked in theView the full article
Drupal has released security updates for a "highly critical" security vulnerability in Drupal Core that could be exploited by attackers to achieve remote code execution, privilege escalation, or information disclosure.
The vulnerability, now tracked as CVE-2026-9082, carries a CVSS score of 6.5 out of 10.0, per CVE.org. Drupal said the vulnerability resides in a database abstraction API that isView the full article
Microsoft has unveiled two new open-source tools called RAMPART and Clarity to assist developers in better testing the security of artificial intelligence (AI) agents.
RAMPART, short for Risk Assessment and Measurement Platform for Agentic Red Teaming, functions as a Pytest-native safety and security testing framework for writing and running safety and security tests for AI agents, coveringView the full article
Microsoft on Tuesday said it disrupted a malware-signing-as-a-service (MSaaS) operation that weaponized the company's Artifact Signing system to deliver malicious code and conduct ransomware and other attacks, compromising thousands of machines and networks across the world.
The tech giant attributed the activity to a threat actor it calls Fox Tempest, which it said offered the MSaaS schemeView the full article
Cybersecurity researchers have flagged fresh activity from a China-aligned threat actor known as Webworm in 2025, deploying custom backdoors that employ Discord and Microsoft Graph API for command-and-control (C2 or C&C) communications.
Webworm, first publicly documented by Broadcom-owned Symantec in September 2022, is assessed to be active since at least 2022, targeting government agenciesView the full article
New Industry Data Just Released Suggests Not.
On May 19th, 2026, Orchid Security released the results of our Identity Gap: Snapshot 2026. Among the findings, "identity dark matter" (the unseen, unmanaged elements of identity) now overshadows the visible elements 57% vs. 43%. And it couldn't have occurred at a worse time, with enterprises embracing Agent AI with both arms (and unfortunately, asView the full article
AI-generated lookalike domains are now embedded inside the third-party scripts running on your web properties. Here's why your current stack can't see them, and what detection actually requires.
Download the CISO Expert Guide to Typosquatting in the AI Era →
TL;DR
Typosquatting is no longer a user problem. Attackers now embed lookalike domains inside legitimate third-party scripts.View the full article
Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week.
The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass.
"Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as 'YellowKey,'" theView the full article
Grafana Labs, on May 19, 2026, said an investigation into its recent breach found no evidence of customer production systems or operations being compromised.
It said the scope of the incident is limited to the Grafana Labs GitHub environment, which includes public and private source code along with internal GitHub repositories.
"After the initial assessment, we found that in addition to sourceView the full article
GitHub on Tuesday said it's investigating unauthorized access to its internal repositories after the notorious threat actor known as TeamPCP listed the platform's source code and internal organizations for ***** on a cybercrime forum.
"While we currently have no evidence of impact to customer information stored outside of GitHub's internal repositories (such as our customers' enterprises,View the full article
Cybersecurity researchers have disclosed details of a new ad fraud and malvertising operation dubbed Trapdoor targeting Android device users.
The activity, per HUMAN's Satori Threat Intelligence and Research Team, encompassed 455 malicious Android apps and 183 threat actor-owned command-and-control (C2) domains, turning the infrastructure into a pipeline for multi-stage fraud.
"UsersView the full article
Proof-of-concept (PoC) exploit code has now been released for a recently patched security flaw in the Linux kernel that could allow for local privilege escalation (LPE).
Dubbed DirtyDecrypt (aka DirtyCBC), the vulnerability was discovered and reported by the Zellic and V12 security team on May 9, 2026, only to be informed by the maintainers that it was a duplicate of a vulnerability that hadView the full article
In February 2026, a phishing-as-a-service (PhaaS) platform called EvilTokens went live. Within five weeks, it had compromised more than 340 Microsoft 365 organizations across five countries.
The targets of the platform received a message asking them to enter a short code at microsoft.com/devicelogin and complete their normal MFA challenge, then walked away believing they had verified aView the full article
Drupal has issued an alert stating that it intends to release a "core security release" for all supported branches on May 20, 2026, from 5-9 p.m. UTC.
"The Drupal Security Team urges you to reserve time for core updates at that time because exploits might be developed within hours or days," the maintainers of the PHP-based content management system (CMS) said.
"Not all configurations areView the full article
Critical security vulnerabilities have been disclosed in SEPPMail Secure E-Mail Gateway, an enterprise-grade email security solution, that could be exploited to achieve remote code execution and enable an attacker to read arbitrary mails from the virtual appliance.
"These vulnerabilities could have been exploited to read all mail traffic or as an entry vector into the internal network,"View the full article
Cybersecurity researchers have flagged a compromised version of the Nx Console extension that was published to the Microsoft Visual Studio Code (VS Code) Marketplace.
The extension in question is rwl.angular-console (version 18.95.0), a popular user interface and plugin for code editors like VS Code, Cursor, and JetBrains. The VS Code extension has more than 2.2 million installations. The OpenView the full article
In yet another software supply chain attack, threat actors have compromised the popular GitHub Actions workflow, actions-cool/issues-helper, to run malicious code that harvests sensitive credentials and exfiltrates them to an attacker-controlled server.
"Every existing tag in the repository has been moved to point to an imposter commit that does not appear in the action's normal commit history,View the full article
Cybersecurity researchers have discovered a fresh software supply chain attack campaign that has compromised various npm packages associated with the @antv ecosystem as part of the ongoing Mini Shai-Hulud attack wave.
"The attack affects packages tied to the npm maintainer account atool, including echarts-for-react, a widely used React wrapper for Apache ECharts with roughly 1.1 million weeklyView the full article
INTERPOL has coordinated a first-of-its-kind cybercrime crackdown across the Middle East and North Africa (MENA) that led to 201 arrests and the identification of an additional 382 suspects.
The initiative involved the efforts of 13 countries from the region between October 2025 and February 2026, aiming to investigate and neutralize malicious infrastructure, arrest perpetrators behind theseView the full article
Monday opens with a trust problem. A mail server flaw is under active use. A network control system was targeted. Trusted packages were poisoned. A fake model page pushed a stealer. Then came the familiar ransom claim: the data was returned and deleted.
The pattern is clear. One weak dependency can leak keys. One leaked key can open cloud access. One cloud foothold can become a productionView the full article
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