vulnerability Microsoft warns of new Defender zero-days exploited in attacks Microsoft has released security patches for two zero-day vulnerabilities, CVE-2026-41091 (RedSun) and CVE-2026-45498 (UnDefend), that are being actively exploited in attacks. These flaws, affecting Microsoft Defender and… BleepingComputer · May 21, 2026 High CVE-2026-41091CVE-2026-45498USzero-dayprivilege escalationdefender
supply-chain GitHub links repo breach to TanStack npm supply-chain attack A supply-chain attack targeting GitHub originated with a malicious version of the Nx Console VS Code extension, facilitated by the TeamPCP threat group. The attack compromised over 3,800 internal repositories and extende… BleepingComputer · May 21, 2026 High USsupply-chainnpmvscode
threat-intel GitHub Internal Repositories Breached via Malicious Nx Console VS Code Extension GitHub experienced a breach of its internal repositories due to a compromised employee device utilizing a malicious VS Code extension, the Nx Console. The attack, orchestrated by TeamPCP, leveraged a supply chain vulnera… The Hacker News · May 21, 2026 High CVE-2026-45321CVE-2026-48027supply chainvscodeopen source
threat-intel GitHub Confirms Breach, 4K Internal Repos Stolen GitHub experienced a data breach where approximately 4,000 internal code repositories were stolen by the threat actor TeamPCP. The breach originated from a poisoned VS Code extension compromising an employee's device, an… Dark Reading · May 20, 2026 High vscodeopen sourcedeveloper tooling
threat-intel FTC warns 12 major tech firms of violating Take It Down Act The Federal Trade Commission (FTC) has issued warnings to twelve major tech companies, alleging non-compliance with the newly enacted Take It Down Act (TIDA). This law mandates platforms swiftly remove non-consensual int… The Record · May 20, 2026 High image abuseonline safetyprivacy
threat-intel Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks Microsoft disrupted a malware-signing-as-a-service (MSaaS) operation, dubbed OpFauxSign, led by the threat actor Fox Tempest, which was using its Artifact Signing system to distribute malware and ransomware. The operatio… The Hacker News · May 20, 2026 High USFRINmsaascode-signingmalware
threat-intel Webworm Deploys EchoCreep and GraphWorm Backdoors Using Discord and MS Graph API A China-aligned threat actor known as Webworm has expanded its arsenal with two new backdoors, EchoCreep and GraphWorm, utilizing Discord and the Microsoft Graph API for command-and-control communications. The group, act… The Hacker News · May 20, 2026 High CHRUGEdiscordmicrosoft graphrat
threat-intel GitHub Breached — Employee Device Hack Led to Exfiltration of 3,800+ Internal Repos GitHub experienced a breach originating from an employee device compromised by a poisoned Microsoft Visual Studio Code extension. The attacker exfiltrated over 3,800 internal repositories, facilitated by the threat actor… The Hacker News · May 20, 2026 High USILIRsupply chaincredential theftinfostealer
vulnerability Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit This report details a zero-day vulnerability, dubbed ‘YellowKey,’ affecting Windows 11 and Server 2025, allowing attackers to bypass BitLocker Device Encryption through a USB drive exploit. Microsoft has released a mitig… The Hacker News · May 20, 2026 High CVE-2026-45585USbitlockerwinrezero-day
vulnerability Microsoft shares mitigation for YellowKey Windows zero-day Microsoft has released mitigation steps for a newly disclosed Windows zero-day vulnerability, dubbed YellowKey, which allows unauthorized access to BitLocker-protected drives. The vulnerability was initially revealed by… BleepingComputer · May 20, 2026 High CVE-2026-33825CVE-2026-45585zero-daybitlockerwinre
threat-intel Cybercrime service disrupted for abusing Microsoft platform to sign malware Microsoft disrupted a malware-as-a-service (MaaS) operation, dubbed Fox Tempest, that was abusing its Artifact Signing service to generate fraudulent code-signing certificates for ransomware gangs and other cybercriminal… BleepingComputer · May 19, 2026 High USCAmsaascode signingfraudulent certificates
threat-intel Windows Zero-Day Barrage Continues After Patch Tuesday A security researcher known as "Nightmare Eclipse" has disclosed six Windows zero-day vulnerabilities over the past six weeks, some of which are actively being exploited. These vulnerabilities, including YellowKey, Green… Dark Reading · May 19, 2026 High CVE-2020-17103CVE-2026-33825USzero-daybitlockerprivilege escalation
malware Stealer Spoofs Google, Microsoft & Apple, Then Backdoors macOS A new macOS infostealer, dubbed SHub Reaper, is targeting users through fake WeChat and Miro installers, mimicking Google, Microsoft, and Apple to lure victims. This malware combines stealer and backdoor capabilities, ut… Dark Reading · May 19, 2026 High USmacosinfostealerbackdoor
threat-intel The New Phishing Click: How OAuth Consent Bypasses MFA In February 2026, a phishing-as-a-service platform, EvilTokens, compromised over 340 Microsoft 365 organizations across five countries by exploiting OAuth consent screens. Attackers gained access to valid refresh tokens… The Hacker News · May 19, 2026 High USGBoauthconsentphishing
threat-intel The quest for greater tech independence The article explores the growing trend of nations, particularly in Europe, seeking greater tech sovereignty – the ability to independently control their digital infrastructure and technology supply chains – driven by con… WeLiveSecurity · May 19, 2026 High EUCHUStech sovereigntydigital independencesupply chain
supply-chain Compromised Nx Console 18.95.0 Targeted VS Code Developers with Credential Stealer A compromised version of the Nx Console VS Code extension (version 18.95.0) was used to steal developer credentials through a supply chain attack. The extension, initially introduced by a developer whose machine was comp… The Hacker News · May 19, 2026 High RUUSsupply chaincredential theftvscode
supply-chain Popular GitHub Action Tags Redirected to Imposter Commit to Steal CI/CD Credentials A GitHub Actions workflow, actions-cool/issues-helper, was compromised through an imposter commit attack, allowing threat actors to steal CI/CD credentials from running workflows. The attack leveraged malicious code inje… The Hacker News · May 19, 2026 High USgithubci/cdsupply-chain
threat-intel Microsoft Exchange Zero-Day Under Attack, No Patch Available A zero-day vulnerability (CVE-2026-42897) affecting Microsoft Exchange Outlook Web Access (OWA) is under active exploitation, allowing attackers to compromise mailboxes through cross-site scripting (XSS). Despite Microso… Dark Reading · May 18, 2026 High CVE-2026-42897BEzero-dayxssexchange
threat-intel ⚡ Weekly Recap: Exchange 0-Day, npm Worm, Fake AI Repo, Cisco Exploit and More This week’s security news highlights several active exploits and attacks, including a widespread vulnerability in on-prem Exchange Servers, a Cisco SD-WAN controller compromise attributed to UAT-8616, and a significant s… The Hacker News · May 18, 2026 High CVE-2026-42897CVE-2026-20182CVE-2026-20127USexchangesupply chainnpm
threat-intel The Boring Stuff Is Dangerous Now This article highlights a growing security challenge stemming from the widespread adoption of AI coding tools and the emergence of AI agents capable of exploiting obscure vulnerabilities. The combination creates a situat… Dark Reading · May 18, 2026 High aivulnerabilitycybersecurity
