The Centre for Cybersecurity Belgium (CCB) has warned that threat actors are now exploiting CVE-2026-41089, a critical Windows Netlogon vulnerability that Microsoft patched during the May 2026 Patch Tuesday. Netlogon is a core Windows Server RPC service that authenticates users and services on domain-based networks. The flaw is a stack-based buffer overflow that lets an unauthenticated attacker send a specially crafted network request to a domain controller and gain remote code execution without signing in or any prior access. It impacts all currently supported Windows Server versions, including the latest release. Because domain controllers are high-value targets, successful exploitation can lead to full domain compromise.
More than 30 npm packages under Red Hat's @redhat-cloud-services namespace were backdoored in a supply-chain attack distributing a new Shai-Hulud variant dubbed 'Miasma.' Aikido and OX Security found dozens of package versions laced with malware that steals developer credentials, cloud secrets, SSH keys, and CI/CD tokens. Aikido says the compromised packages pull roughly 117,000 weekly downloads. Red Hat told BleepingComputer it removed the affected packages after becoming aware of the incident and that the compromise was limited to internal development tooling, with no impact on production products or services. The Miasma variant continues the self-propagating worm behavior that made the original Shai-Hulud campaign so disruptive.
Aikido Security has disclosed that codexui-android, an npm package advertised as a remote web UI for OpenAI Codex with over 29,000 weekly downloads, has been silently exfiltrating users' Codex authentication tokens for the past month. Unlike a typosquat, the malware was embedded into a functional, actively-developed package roughly a month after publication to build trust; the GitHub repo stayed clean. The code reads ~/.codex/auth.json and ships the access_token, refresh_token, id_token, and account ID to sentry.anyclaw[.]store, a server masquerading as Sentry. The non-expiring refresh_token lets an attacker silently impersonate the developer indefinitely with full Codex account access. The package remains available; the npm account is 'friuns.'
SilentPush has detailed DriveSurge, a threat actor running large-scale malware-distribution campaigns by compromising thousands of websites and using ClickFix and FakeUpdates social engineering. ClickFix tricks visitors into copying and running malicious commands under the pretense of fixing a technical issue; FakeUpdates uses fraudulent browser-update prompts. DriveSurge operates primarily as an initial-access broker on a pay-per-install model, enabling follow-on attacks by other criminals. Compromised-site visitors are routed through a Traffic Distribution System called zTDS that profiles them before redirecting to malware-delivery infrastructure. The model lets DriveSurge monetize hijacked traffic at scale while downstream actors deploy infostealers, loaders, or ransomware. The campaign overlaps with the broader ClickFix surge across the ecosystem.
GoDaddy has documented a WordPress malware campaign that hides command-and-control data inside Steam Community profile comments, abusing Valve's platform to avoid running separate C2 infrastructure and evade detection. Around 1,980 WordPress sites have been infected since July 2025. The first-stage malware loads a Steam profile on each page view and extracts text from benign-looking comments that conceal a payload encoded with six invisible Unicode characters such as zero-width joiners. The decoder maps the invisible characters to bytes, reconstructs a URL to hello-mywordl[.]info, and injects JavaScript disguised as a legitimate library into every frontend page. The final stage is a backdoor that responds to POST requests carrying a specific authentication cookie.
Password manager Dashlane locked out multiple users after an external brute-force attack triggered its automated account-suspension defenses. Affected users received emails about suspicious access requests and device-registration codes from foreign locations they did not initiate, prompting confusion about whether the messages were themselves phishing. Dashlane confirmed the suspensions were a built-in security response to credential-stuffing-style login attempts and said there is no evidence its systems were compromised. The company opened an investigation on May 31 at 15:19 UTC and marked it resolved by 22:30 UTC, with all affected accounts unsuspended. The episode shows account-lockout defenses working as designed, though the user-experience and phishing-confusion fallout is real.
Seqrite Labs has documented Operation Dragon Weave, a China-aligned cyber-espionage campaign targeting government, research, academic, technology, and financial-services organizations in the Czech Republic and Taiwan. Spear-phishing emails carry ZIP attachments that trigger one of two infection chains: a malicious LNK file masquerading as a PDF that runs PowerShell, or a self-contained Rust dropper launched directly. Both extract RuntimeBroker_update.exe, which DLL-sideloads a malicious UnityPlayer.dll to deploy a Rust loader called RUSTCLOAK. RUSTCLOAK decrypts and runs the final payload, an AdaptixC2 agent codenamed AZUREVEIL that uses Microsoft Azure Blob Storage for command-and-control. The use of legitimate cloud services for C2 and Rust tooling complicates detection.
Krebs on Security reports that attackers social-engineered Meta's newly-deployed conversational AI account-recovery assistant to hijack high-value, short Instagram handles allegedly worth over half a million dollars. Meta had rolled out the AI layer to reduce friction in common recovery workflows - relinking emails, triggering password resets, verifying ownership - that previously required weeks of back-and-forth with automated ticketing. Just as human support staff can be tricked into granting unauthorized access, the AI assistant proved equally eager to help and vulnerable to manipulation. Meta pushed an emergency patch over the weekend and says no back-end database was breached. Critically, the exploit failed against any account with MFA enabled.
Anthropic is set to give the EU's cybersecurity agency ENISA access to its restricted Mythos model through Project Glasswing - making ENISA the first EU institution and first entity outside the US and UK to join. The move, communicated to the European Commission over the weekend, ends a weeks-long standoff after euro-area finance ministers, the ECB, and member states demanded access on learning Mythos had found flaws in systems European banks, governments, and critical infrastructure rely on. Terms covering data sovereignty, sharing findings with member states, and the scope of systems ENISA may test are still being negotiated. BNP Paribas and Mistral continue building a European alternative.
CISA has added CVE-2024-21182, an unspecified vulnerability in Oracle WebLogic Server, to its Known Exploited Vulnerabilities catalog based on evidence of active exploitation. WebLogic is a widely deployed Java EE application server that frequently sits on internet-facing infrastructure, making it a recurring target for initial access and cryptomining campaigns. Under Binding Operational Directive 22-01, Federal Civilian Executive Branch agencies must remediate KEV-listed flaws by the assigned deadline, and CISA urges all organizations to prioritize patching. Oracle addressed the flaw in a prior Critical Patch Update; organizations running unpatched WebLogic instances should apply the relevant CPU and audit for signs of exploitation immediately.
TrustStrike Labs