Cyber Security
Self-Healing WordPress Backdoor Defies Standard Removal
Cisco Patches Actively Exploited Catalyst SD-WAN Flaw
MetaMask Discloses Incident, Exits Ethereum Validators
TeamViewer Patches Critical Access-Control Bypass Flaw
WatchGuard Patches Critical Root Code Execution Flaw
CISA Warns of Critical Pre-Auth Flaw in MikroTik Routers
FTC Confirms Probe Into OpenAI, Anthropic AI Agents
Teen Researcher’s AI Tool Gains Admin on Microsoft Titan
OpenSSL Patches High-Severity DTLS Memory Leak Flaw
CSuite Phishing Campaign Hijacks Microsoft 365 Sessions
Chrome, Firefox Patch Over 100 Flaws in Joint Update
Pentagon Records Agency Breach Exposes Data on 3 Million
France Tax Agency Breached Seven Weeks via Stolen Passwords
Citrix NetScaler Zero-Days Deployed WHIPSHOT, SLAPSHOT
FBI Tells ShinyHunters Members to Turn Themselves In
Russia’s Star Blizzard Targets 100+ Orgs With Fake Invites
New Spectre-v2 BTR Attack Leaks Linux Root Password Hashes
Autonomous AI Agent Breaches Cybersecurity Nonprofit DIVD
OpenAI Discloses Self-Replicating Worm-Style Prompt Injection
Fake ChatGPT Custom GPTs Push ClickFix Attacks to Drop RAT
101 Malicious npm Packages Add Developers to WhatsApp Groups
Glow Security Finds 13,000 Exposed AI Agent Screenshots
Kiteworks Patches Critical Flaw Found During Precautionary Shutdown
Ex-Air Force Members Sentenced to 189 Months for BEC Scams
Vietnamese National Charged in $16 Million Crypto Scam
Apple Patches CoreGraphics Zero-Day Used in Targeted Attacks
MCP Python SDK Flaw Exposes OAuth Credentials to Malicious Servers
OpenAI Shelves GPT-6.1 Astra After Safety Failures and Rogue Actions
Ransomware Attack Disrupts Keio Corporation Business Systems
Times Car Breach Exposes 6.6 Million Japanese Car-Sharing Accounts
Application Security
Single-Letter Go Typosquat Backdoors Financial and Crypto Developers
A Go module typosquatting shopspring/decimal deployed a DNS-based backdoor polling for OS commands every five minutes, targeting financial app developers.
Application Security
CVE-2026-46376: FreePBX Hard-Coded Credentials Open VoIP Portals
CVE-2026-46376 in FreePBX hardcodes setup credentials in the User Control Panel, letting unauthenticated attackers access phone systems and commit toll fraud.
Cybersecurity
Pardus Linux CVSS 9.3 Flaw Exposes Turkish Government Systems to Root
A three-vulnerability chain in Pardus Linux's pardus-update package lets any local user gain root on Turkish government systems; no patch is available yet.
CVE Vulnerability Alerts
CVE-2026-46333: Linux Kernel Flaw Grants Root via ssh-keysign
Qualys disclosed CVE-2026-46333, a nine-year-old Linux privilege escalation flaw that gives local users a reliable path to root on Debian, Fedora, and Ubuntu.
CVE Vulnerability Alerts
CISA Adds Two Exploited Microsoft Defender Zero-Days to KEV
Microsoft Defender is actively being exploited via two zero-days, CVE-2026-41091 and CVE-2026-45498, which CISA added to its KEV catalog on May 20, 2026.
Cybersecurity
Ukraine IDs 18-Year-Old Who Stole 28,000 Accounts, $721K
Ukrainian cyberpolice and U.S. law enforcement identified an 18-year-old from Odesa behind 28,000 stolen accounts and $721,000 in fraudulent purchases.
CVE Vulnerability Alerts
SonicWall Gen6 MFA Bypass CVE-2024-12802 Left Open by Incomplete Patch
SonicWall's patch for CVE-2024-12802 needed a manual LDAP reconfiguration most admins skipped, leaving Gen6 VPN open to MFA bypass and ransomware access.
TeamPCP Claims Breach of 4,000 GitHub Private Repositories
Cybersecurity
TeamPCP Claims Breach of 4,000 GitHub Private Repositories
The hacker group TeamPCP claims unauthorized access to ~4,000 GitHub private repositories and is demanding a $50,000 ransom for the stolen source code.
CVE-2026-45585: Windows Zero-Day Bypasses BitLocker
CVE Vulnerability Alerts
CVE-2026-45585: Windows Zero-Day Bypasses BitLocker
Microsoft disclosed CVE-2026-45585, a Windows zero-day that allows attackers with physical access to bypass BitLocker encryption without the decryption key.
CVE-2026-45829: Max-Severity Flaw Lets Attackers Hijack ChromaDB
Application Security
CVE-2026-45829: Max-Severity Flaw Lets Attackers Hijack ChromaDB
CVE-2026-45829 is a maximum-severity pre-auth flaw in ChromaDB allowing server hijacking; about 73% of internet-exposed instances run a vulnerable version.
Microsoft Disrupts Fox Tempest Malware-Signing Service
Cybersecurity
Microsoft Disrupts Fox Tempest Malware-Signing Service
Microsoft seized Fox Tempest's signspace.cloud domain and revoked over 1,000 fraudulent code-signing certificates used by ransomware groups and infostealers.
Cybersecurity
B1ack’s Stash Releases 4.6M Stolen Credit Cards Free
B1ack's Stash dark-web marketplace released 4.6 million stolen card records for free, with 4.3 million actionable, after resellers violated its terms.
Trapdoor Android Ad Fraud Scheme Generated 659M Fake Bids
Cybersecurity
Trapdoor Android Ad Fraud Scheme Generated 659M Fake Bids
HUMAN's Satori team disclosed Trapdoor, 455 malicious Android apps generating 659 million fake ad bids daily, with more than 24 million total downloads.
Nx Console VS Code Extension Poisoned to Steal 1Password, AWS Keys
Application Security
Nx Console VS Code Extension Poisoned to Steal 1Password, AWS Keys
Version 18.95.0 of the Nx Console VS Code extension was weaponized for 11 minutes to steal 1Password vaults, AWS credentials, and Claude Code secrets.
Storm-2949 Abuses Azure Password Reset to Seize Cloud Accounts
Cybersecurity
Storm-2949 Abuses Azure Password Reset to Seize Cloud Accounts
Microsoft tracks Storm-2949, a threat actor using SSPR social engineering to hijack Azure accounts without malware and extract Key Vault secrets and M365 data.
Drupal Issues Highly Critical Patch, Exploits Expected Within Hours
Application Security
Drupal Issues Highly Critical Patch, Exploits Expected Within Hours
Drupal warned a highly critical vulnerability in versions 11.3.x through 10.5.x could be exploited within hours of its May 20, 2026 patch release date.
SEPPMail Gateway Hit with 7 CVEs, Including CVSS 10.0 RCE Flaw
CVE Vulnerability Alerts
SEPPMail Gateway Hit with 7 CVEs, Including CVSS 10.0 RCE Flaw
Seven vulnerabilities in SEPPMail Secure E-Mail Gateway, including a CVSS 10.0 pre-auth RCE, could let attackers intercept all protected mail traffic.
Grafana Breach Traced to TanStack npm Supply Chain Attack
Cybersecurity
Grafana Breach Traced to TanStack npm Supply Chain Attack
Grafana revealed the source code breach that exposed its GitHub repositories originated from a TanStack npm package poisoned by the TeamPCP threat actor.
CVE Vulnerability Alerts
CISA Orders Patch for Sixth Cisco SD-WAN Zero-Day of 2026
Cisco confirmed active exploitation of CVE-2026-20182, a CVSS 10.0 authentication bypass in SD-WAN, as CISA gave federal agencies three days to patch.
Application Security
Exchange Server XSS CVE-2026-42897 Exploited via Crafted Email
Microsoft confirmed active exploitation of CVE-2026-42897, an XSS flaw in on-premises Exchange Server triggered when victims open malicious emails in OWA.
CVE Vulnerability Alerts
Critical FortiMail Zero-Day Exploited With No Patch Yet
Cybersecurity
Pentagon Records Agency Breach Exposes Data on 3 Million
Cybersecurity
Police Dismantle KillSec Ransomware Gang, Nab Teen Leader
Cybersecurity
Ransomware Attack Disrupts Keio Corporation Business Systems

TOP CYBERSECURITY HEADLINES

This Week’s Security Spotlight

Cybersecurity
FTC Confirms Probe Into OpenAI, Anthropic AI Agents
Cybersecurity
CSuite Phishing Campaign Hijacks Microsoft 365 Sessions
Cybersecurity
Pentagon Records Agency Breach Exposes Data on 3 Million
Cybersecurity
OpenAI Shelves GPT-6.1 Astra After Safety Failures and Rogue Actions
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CVE-2026-46333: Linux Kernel Flaw Grants Root via ssh-keysign
Qualys disclosed CVE-2026-46333, a nine-year-old Linux privilege escalation flaw that gives local users a reliable path to root on Debian, Fedora, and Ubuntu.
CISA Adds Two Exploited Microsoft Defender Zero-Days to KEV
Microsoft Defender is actively being exploited via two zero-days, CVE-2026-41091 and CVE-2026-45498, which CISA added to its KEV catalog on May 20, 2026.
Ukraine IDs 18-Year-Old Who Stole 28,000 Accounts, $721K
Ukrainian cyberpolice and U.S. law enforcement identified an 18-year-old from Odesa behind 28,000 stolen accounts and $721,000 in fraudulent purchases.
SonicWall Gen6 MFA Bypass CVE-2024-12802 Left Open by Incomplete Patch
SonicWall's patch for CVE-2024-12802 needed a manual LDAP reconfiguration most admins skipped, leaving Gen6 VPN open to MFA bypass and ransomware access.
TeamPCP Claims Breach of 4,000 GitHub Private Repositories
The hacker group TeamPCP claims unauthorized access to ~4,000 GitHub private repositories and is demanding a $50,000 ransom for the stolen source code.
CVE-2026-45585: Windows Zero-Day Bypasses BitLocker
Microsoft disclosed CVE-2026-45585, a Windows zero-day that allows attackers with physical access to bypass BitLocker encryption without the decryption key.
CVE-2026-45829: Max-Severity Flaw Lets Attackers Hijack ChromaDB
CVE-2026-45829 is a maximum-severity pre-auth flaw in ChromaDB allowing server hijacking; about 73% of internet-exposed instances run a vulnerable version.
Microsoft Disrupts Fox Tempest Malware-Signing Service
Microsoft seized Fox Tempest's signspace.cloud domain and revoked over 1,000 fraudulent code-signing certificates used by ransomware groups and infostealers.
B1ack’s Stash Releases 4.6M Stolen Credit Cards Free
B1ack's Stash dark-web marketplace released 4.6 million stolen card records for free, with 4.3 million actionable, after resellers violated its terms.
Trapdoor Android Ad Fraud Scheme Generated 659M Fake Bids
HUMAN's Satori team disclosed Trapdoor, 455 malicious Android apps generating 659 million fake ad bids daily, with more than 24 million total downloads.
Nx Console VS Code Extension Poisoned to Steal 1Password, AWS Keys
Version 18.95.0 of the Nx Console VS Code extension was weaponized for 11 minutes to steal 1Password vaults, AWS credentials, and Claude Code secrets.
Storm-2949 Abuses Azure Password Reset to Seize Cloud Accounts
Microsoft tracks Storm-2949, a threat actor using SSPR social engineering to hijack Azure accounts without malware and extract Key Vault secrets and M365 data.
Drupal Issues Highly Critical Patch, Exploits Expected Within Hours
Drupal warned a highly critical vulnerability in versions 11.3.x through 10.5.x could be exploited within hours of its May 20, 2026 patch release date.
SEPPMail Gateway Hit with 7 CVEs, Including CVSS 10.0 RCE Flaw
Seven vulnerabilities in SEPPMail Secure E-Mail Gateway, including a CVSS 10.0 pre-auth RCE, could let attackers intercept all protected mail traffic.
Grafana Breach Traced to TanStack npm Supply Chain Attack
Grafana revealed the source code breach that exposed its GitHub repositories originated from a TanStack npm package poisoned by the TeamPCP threat actor.
CISA Orders Patch for Sixth Cisco SD-WAN Zero-Day of 2026
Cisco confirmed active exploitation of CVE-2026-20182, a CVSS 10.0 authentication bypass in SD-WAN, as CISA gave federal agencies three days to patch.
Exchange Server XSS CVE-2026-42897 Exploited via Crafted Email
Microsoft confirmed active exploitation of CVE-2026-42897, an XSS flaw in on-premises Exchange Server triggered when victims open malicious emails in OWA.
Ghostwriter APT Deploys Cobalt Strike in Geofenced Ukraine Campaign
ESET documented a Ghostwriter spear-phishing campaign using geofenced PDFs to deliver Cobalt Strike against Ukrainian and Polish government targets since March 2026.
OpenAI Confirms Breach via Mini Shai-Hulud npm Supply Chain Attack
OpenAI confirmed two employee devices were compromised through a supply chain attack, exposing code-signing certificates for macOS, Windows, iOS, and Android apps.
KongTuke IAB Uses Microsoft Teams to Deploy ModeloRAT in 5 Minutes
ReliaQuest found KongTuke impersonating IT help desk staff via Microsoft Teams to trick employees into running PowerShell, deploying ModeloRAT and selling access to ransomware groups.