Security Brief Daily

Security Brief Daily
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A daily AI-generated cybersecurity briefing. Fresh threat intelligence, vulnerability roundups, and infosec news — concise, clear, and delivered every day.

  1. 2 DAYS AGO

    May 23, 2026 · #65

    Episode 65 — 23 May 2026 1. Drupal Core SQL Injection Bug Actively Exploited, Added to CISA KEV Source: The Hacker News The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a recently patched critical security flaw impacting Drupal Core to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The vulnerability in question is... 2. Ubiquiti patches three max severity UniFi OS vulnerabilities Source: Bleeping Computer Ubiquiti has released security updates to patch three maximum severity vulnerabilities in UniFi OS that can be exploited by remote attackers without privileges. UniFi OS is a unified operating system that powers UniFi Consoles and helps manage IT infrastructure, including... 3. Netherlands seizes 800 servers of hosting firm enabling cyberattacks Source: Bleeping Computer Financial crime investigators in the Netherlands (FIOD) arrested two men and seized 800 servers linked to a web hosting company that enabled cyberattacks, interference operations, and disinformation campaigns. FIOD arrested a 57-year-old suspect, who was the company director,... 4. Drupal: Critical SQL injection flaw now targeted in attacks Source: Bleeping Computer Drupal is warning that hackers are attempting to exploit a "highly critical" SQL injection vulnerability announced earlier this week. The content management system (CMS) project published a PSA on May 18, urging administrators to reserve time for core updates that addressed... 5. LiteSpeed cPanel Plugin CVE-2026-48172 Exploited to Run Scripts as Root Source: The Hacker News A maximum-severity security vulnerability impacting LiteSpeed User-End cPanel Plugin has come under active exploitation in the wild. The flaw, tracked as CVE-2026-48172 (CVSS score: 10.0), relates to an instance of incorrect privilege assignment that an attacker could abuse... 6. Lawmakers Demand Answers as CISA Tries to Contain Data Leak Source: Krebs on Security Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other agency secrets on... 7. Trend Micro warns of Apex One zero-day exploited in the wild Source: Bleeping Computer Japanese cybersecurity software company Trend Micro has addressed an Apex One zero-day vulnerability exploited in attacks targeting Windows systems. Apex One is Trend Micro's enterprise-grade endpoint security platform that protects corporate networks from a wide range of... 8. First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups Source: The Hacker News Authorities in Europe and North America have announced the dismantling of a criminal virtual private network (VPN) service used by criminal actors to obscure the origins of ransomware attacks, data theft, scanning, and denial-of-service attacks. Codenamed Operation Saffron,...

    4 min

  2. 3 DAYS AGO

    May 22, 2026 · #64

    Episode 64 — 22 May 2026 1. Max severity Cisco Secure Workload flaw gives Site Admin privileges Source: Bleeping Computer Cisco has released security updates to address a maximum-severity Secure Workload vulnerability that allows attackers to gain Site Admin privileges. Formerly known as Cisco Tetration, Cisco Secure Workload helps admins reduce their network's attack surface through zero trust... 2. Google accidentally exposed details of unfixed Chromium flaw Source: Bleeping Computer Google has accidentally leaked details about an unfixed issue in Chromium that keeps JavaScript running in the background even when the browser is closed, allowing remote code execution on the device. The flaw was reported by security researcher Lyra Rebane and acknowledged... 3. Microsoft warns of new Defender zero-days exploited in attacks Source: Bleeping Computer On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. The first one, tracked as CVE-2026-41091 , is a privilege escalation security flaw affecting Microsoft Malware Protection Engine... 4. Police seize “First VPN” service used in ransomware, data theft attacks Source: Bleeping Computer A virtual private network service called 'First VPN,' used in ransomware and data theft attacks, has been taken offline in a joint international law enforcement operation. Authorities have seized dozens of First VPN servers located in 27 countries, arrested the administrator,... 5. CISA Adds Exploited Langflow and Trend Micro Apex One Vulnerabilities to KEV Source: The Hacker News The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added two security flaws impacting Langflow and Trend Micro Apex One to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerabilities in question are... 6. Alleged Kimwolf Botmaster ‘Dort’ Arrested, Charged in U.S. and Canada Source: Krebs on Security Canadian authorities on Wednesday arrested a 23-year-old Ottawa man on suspicion of building and operating Kimwolf , a fast spreading Internet-of-Things botnet that enslaved millions of devices for use in a series of massive distributed denial-of-service (DDoS) attacks over... 7. Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks Source: The Hacker News 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.... 8. Webworm Deploys EchoCreep and GraphWorm Backdoors Using Discord and MS Graph API Source: The Hacker News 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...

    5 min

  3. 4 DAYS AGO

    May 21, 2026 · #63

    Episode 63 — 21 May 2026 1. Microsoft warns of new Defender zero-days exploited in attacks Source: Bleeping Computer On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. The first one, tracked as CVE-2026-41091 , is a privilege escalation security flaw affecting Microsoft Malware Protection Engine... 2. Hackers bypass SonicWall VPN MFA due to incomplete patching Source: Bleeping Computer Threat actors brute-forced VPN credentials and bypassed multi-factor authentication (MFA) on SonicWall Gen6 SSL-VPN appliances to deploy tools used in ransomware attacks. During the intrusions, the hacker took between 30 and 60 minutes to log in, do network reconnaissance,... 3. Highly Critical Drupal Core Flaw Exposes PostgreSQL Sites to RCE Attacks Source: The Hacker News 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... 4. Microsoft shares mitigation for YellowKey Windows zero-day Source: Bleeping Computer Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. The security flaw was disclosed last week by an anonymous security researcher known as 'Nightmare Eclipse,' who described it... 5. GitHub links repo breach to TanStack npm supply-chain attack Source: Bleeping Computer GitHub says the hackers who breached 3,800 internal repositories gained access via a malicious version of the Nx Console VS Code extension, compromised in last week's TanStack npm supply-chain attack . This attack is attributed to the TeamPCP threat group and began with the... 6. Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit Source: The Hacker News 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... 7. 9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros Source: The Hacker News 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... 8. GitHub Internal Repositories Breached via Malicious Nx Console VS Code Extension Source: The Hacker News 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...

    4 min

  4. 5 DAYS AGO

    May 20, 2026 · #62

    Episode 62 — 20 May 2026 1. Microsoft shares mitigation for YellowKey Windows zero-day Source: Bleeping Computer Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. The security flaw was disclosed last week by an anonymous security researcher known as 'Nightmare Eclipse,' who described it... 2. Grafana GitHub Breach Exposes Source Code via TanStack npm Attack Source: The Hacker News 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... 3. Max-severity flaw in ChromaDB for AI apps allows server hijacking Source: Bleeping Computer A max-severity vulnerability in the latest Python FastAPI version of the ChromaDB project allows unauthenticated attackers to run arbitrary code on exposed servers. The flaw is tracked as CVE-2026-45829 and was reported to ChromaDB on February 17. It received the maximum... 4. GitHub confirms breach of 3,800 repos via malicious VSCode extension Source: Bleeping Computer GitHub has confirmed that roughly 3,800 internal repositories were breached after one of its employees installed a malicious VS Code extension. The company has since removed the unnamed trojanized extension from the VS Code marketplace and has secured the compromised device.... 5. Cybercrime service disrupted for abusing Microsoft platform to sign malware Source: Bleeping Computer Microsoft says it has disrupted a malware-signing-as-a-service (MSaaS) operation that abused the company's Artifact Signing service to generate fraudulent code-signing certificates used by ransomware gangs and other cybercriminals. According to a report published today by... 6. DirtyDecrypt PoC Released for Linux Kernel CVE-2026-31635 LPE Vulnerability Source: The Hacker News 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... 7. Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, Privilege Escalation Flaws Source: The Hacker News Ivanti, Fortinet, n8n, SAP, and VMware have released security fixes for various vulnerabilities that could be exploited by bad actors to bypass authentication and execute arbitrary code. Topping the list is a critical flaw impacting Ivanti Xtraction (CVE-2026-8043, CVSS... 8. ⚡ Weekly Recap: Exchange 0-Day, npm Worm, Fake AI Repo, Cisco Exploit and More Source: The Hacker News 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....

    5 min

  5. 6 DAYS AGO

    May 19, 2026 · #61

    Episode 61 — 19 May 2026 1. INTERPOL ‘Operation Ramz’ seizes 53 malware, phishing servers Source: Bleeping Computer More than 200 individuals were arrested for cybercrime activities during INTERPOL's Operation Ramz, which focused on the Middle East and North Africa. Law enforcement also identified another 382 suspects across 13 countries (Algeria, Bahrain, Egypt, Iraq, Jordan, Lebanon,... 2. New Windows 'MiniPlasma' zero-day exploit gives SYSTEM access, PoC released Source: Bleeping Computer A cybersecurity researcher has released a proof-of-concept exploit for a Windows privilege escalation zero-day dubbed "MiniPlasma" that lets attackers gain SYSTEM privileges on fully patched Windows systems. The exploit was published by a researcher known as Chaotic Eclipse,... 3. SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access Source: The Hacker News 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... 4. Tycoon2FA hijacks Microsoft 365 accounts via device-code phishing Source: Bleeping Computer The Tycoon2FA phishing kit now supports device-code phishing attacks and abuses Trustifi click-tracking URLs to hijack Microsoft 365 accounts. Despite an international law enforcement operation disrupting the Tycoon2FA phishing platform in March, the malicious operation was... 5. Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, Privilege Escalation Flaws Source: The Hacker News Ivanti, Fortinet, n8n, SAP, and VMware have released security fixes for various vulnerabilities that could be exploited by bad actors to bypass authentication and execute arbitrary code. Topping the list is a critical flaw impacting Ivanti Xtraction (CVE-2026-8043, CVSS... 6. ⚡ Weekly Recap: Exchange 0-Day, npm Worm, Fake AI Repo, Cisco Exploit and More Source: The Hacker News 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.... 7. CISA Admin Leaked AWS GovCloud Keys on Github Source: Krebs on Security Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts... 8. Grafana says stolen GitHub token let hackers steal codebase Source: Bleeping Computer Grafana Labs disclosed that hackers have downloaded its source code after breaching its GitHub environment using a stolen access token. [...]

    4 min

  6. 16 MAY

    May 16, 2026 · #58

    Episode 58 — 16 May 2026 1. Microsoft warns of Exchange zero-day flaw exploited in attacks Source: Bleeping Computer On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow threat actors to execute arbitrary code via cross-site scripting (XSS) while targeting Outlook on the web users. Microsoft describes this security flaw... 2. Funnel Builder WordPress plugin bug exploited to steal credit cards Source: Bleeping Computer A critical vulnerability in the Funnel Builder plugin for WordPress is being actively exploited to inject malicious JavaScript snippets into WooCommerce checkout pages. The flaw has not received an official identifier and can be leveraged without authentication. It affects... 3. Hackers exploit auth bypass flaw in Burst Statistics WordPress plugin Source: Bleeping Computer Hackers are leveraging a critical authentication bypass vulnerability in the WordPress plugin Burst Statistics to obtain admin-level access to websites. Burst Statistics is a privacy-focused analytics plugin active on 200,000 WordPress sites and marketed as a lightweight... 4. CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access Exploits Source: The Hacker News The U.S.Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a newly disclosed vulnerability impacting Cisco Catalyst SD-WAN Controller to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to... 5. Popular node-ipc npm package compromised to steal credentials Source: Bleeping Computer Hackers have injected credential-stealing malware into newly published versions of node-ipc, a popular inter-process communication package, in a new supply chain attack targeting npm. The node-ipc package is a Node.js module that enables various processes to communicate... 6. Turla Turns Kazuar Backdoor Into Modular P2P Botnet for Persistent Access Source: The Hacker News The Russian state-sponsored hacking group known as Turla has transformed its custom backdoor Kazuar into a modular peer-to-peer (P2P) botnet that's engineered for stealth and persistent access to compromised hosts. Turla, per the U.S. Cybersecurity and Infrastructure Security... 7. PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure Source: The Hacker News 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 its public disclosure. The vulnerability in question is CVE-2026-44338 (CVSS score: 7.3),... 8. On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email Source: The Hacker News Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897 (CVSS score: 8.1), has been described as a spoofing bug stemming...

    5 min

  7. 15 MAY

    May 15, 2026 · #57

    Episode 57 — 15 May 2026 1. Hackers exploit auth bypass flaw in Burst Statistics WordPress plugin Source: Bleeping Computer Hackers are leveraging a critical authentication bypass vulnerability in the WordPress plugin Burst Statistics to obtain admin-level access to websites. Burst Statistics is a privacy-focused analytics plugin active on 200,000 WordPress sites and marketed as a lightweight... 2. Cisco warns of new critical SD-WAN flaw exploited in zero-day attacks Source: Bleeping Computer Cisco is warning that a critical Catalyst SD-WAN Controller authentication bypass flaw, tracked as CVE-2026-20182, was actively exploited in zero-day attacks that allowed attackers to gain administrative privileges on compromised devices. CVE-2026-20182 has a maximum severity... 3. 18-year-old NGINX vulnerability allows DoS, potential RCE Source: Bleeping Computer An 18-year-old flaw in the NGINX open-source web server, discovered using an autonomous scanning system, can be exploited for denial of service and, under certain conditions, remote code execution. The vulnerability is tracked as CVE-2026-42945 and received a critical... 4. TeamPCP hackers advertise Mistral AI code repos for sale Source: Bleeping Computer The TeamPCP hacker group is threatening to leak source code from the Mistral AI project unless a buyer is found for the data. In a post on a hacker forum, the threat actor is asking $25,000 for a set of nearly 450 repositories. Mistral AI is a French artificial intelligence... 5. On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email Source: The Hacker News Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897 (CVSS score: 8.1), has been described as a spoofing bug stemming... 6. Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation Source: The Hacker News 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... 7. PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure Source: The Hacker News 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 in question is CVE-2026-44338 (CVSS score: 7.3), a... 8. 18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCE Source: The Hacker News 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, is a heap buffer overflow issue impacting...

    4 min

  8. 14 MAY

    May 14, 2026 · #56

    Episode 56 — 14 May 2026 1. Windows BitLocker zero-day gives access to protected drives, PoC released Source: Bleeping Computer A cybersecurity researcher has published proof-of-concept (PoC) exploits for two unpatched Microsoft Windows vulnerabilities named YellowKey and GreenPlasma, which are a BitLocker bypass and a privilege-escalation flaw. Known as Chaotic Eclipse or Nightmare Eclipse, the... 2. New Fragnesia Linux flaw lets attackers gain root privileges Source: Bleeping Computer Linux distros are rolling out patches for a new high-severity kernel privilege escalation vulnerability that allows attackers to run malicious code as root. Known as Fragnasia and tracked as CVE-2026-46300 , this security flaw stems from a logic bug in the Linux XFRM... 3. New critical Exim mailer flaw allows remote code execution Source: Bleeping Computer A critical vulnerability affecting certain configurations of the Exim open-source mail transfer agent could be exploited by an unauthenticated remote attacker to execute arbitrary code. Identified as CVE-2026-45185 , the security issue impacts some Exim versions before 4.99.3... 4. West Pharmaceutical says hackers stole data, encrypted systems Source: Bleeping Computer West Pharmaceutical Services disclosed that it was the target of a cyberattack that resulted in data exfiltration and system encryption. The company said that it detected a compromise on May 4th. An investigation into the incident determined that the attacker stole data from... 5. 18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCE Source: The Hacker News 6. New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption Source: The Hacker News 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 third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia,... 7. Azerbaijani Energy Firm Hit by Repeated Microsoft Exchange Exploitation Source: The Hacker News A threat actor with affiliations to China has been linked to a "multi-wave intrusion" targeting an unnamed Azerbaijani oil and gas company between late December 2025 and late February 2026, marking an expansion of its targeting. The activity has been attributed by Bitdefender... 8. New Exim BDAT Vulnerability Exposes GnuTLS Builds to Potential Code Execution Source: The Hacker News Exim has released security updates to address a severe security issue affecting certain configurations that could enable memory corruption and potential code execution. Exim is an open-source Mail Transfer Agent (MTA) designed for Unix-like systems to receive, route, and...

    4 min
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A daily AI-generated cybersecurity briefing. Fresh threat intelligence, vulnerability roundups, and infosec news — concise, clear, and delivered every day.

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