VulnHub

Hackers are taking advantage of a serious command execution vulnerability, identified as CVE-2026-110447, in the Collabora Online - Built-in CODE Server app, which is used within Nextcloud. This flaw allows attackers to run arbitrary commands on affected systems, potentially leading to unauthorized access and backdoors in Nextcloud servers. Organizations using this application are at risk, as the exploitation of this vulnerability is already occurring in the wild. Users need to take immediate action to secure their systems and ensure they are not compromised. The issue highlights the ongoing challenges in securing collaborative tools that are increasingly used for remote work and data sharing.

A serious vulnerability in the Linux kernel, identified as CVE-2026-99999 and dubbed PwnEscape, has been revealed, allowing virtual machines (VMs) to access the memory of the host system. This flaw is located within the networking code of the Linux kernel, meaning it affects multiple cloud environments, not just one particular setup. A researcher demonstrated this vulnerability on Vercel's cloud sandboxes, and the company confirmed the issue. This breach poses significant risks, as it could enable attackers to extract sensitive data from the host machine, potentially compromising the integrity and confidentiality of the systems involved. Companies using Linux-based virtual machines should be vigilant and take appropriate measures to safeguard their environments.

A recent campaign has targeted D-Link and Ubiquiti devices across 34 countries, allowing hackers to hijack these devices to create a commercial residential proxy network. This practice, known as proxyjacking, enables attackers to monetize stolen bandwidth from unsuspecting users. The impact is significant as it not only affects individual users' internet speeds and data privacy but also raises concerns about the security of these widely used devices. Users whose devices have been compromised may find their internet connections slower and could potentially face additional security risks if their devices are manipulated for illicit purposes. The situation underscores the need for users to secure their devices and remain vigilant against unauthorized access.

Recently, malicious packages mimicking two widely-used Arch Linux tools, yay and paru, were discovered in the Arch User Repository (AUR). These fake packages were designed to install malware with root privileges, posing a significant risk to users who unknowingly downloaded them. The attackers exploited the trust users place in popular software by creating these deceptive packages. This incident emphasizes the importance of verifying package sources before installation, as users can be easily misled by seemingly legitimate software. Those affected are primarily Arch Linux users who rely on AUR for software installation, and they need to remain vigilant against similar threats in the future.

Researchers from Citizen Lab reported that the Israeli spyware company Candiru has successfully infected devices at Al Jazeera using zero-click attacks via online advertisements. This means that users did not need to interact with the ads for the malware to activate; it could run automatically when an ad loaded, even if it was hidden from view. This incident raises serious concerns about the security of digital advertising and how it can be exploited to target specific organizations. Al Jazeera, a prominent news network, is particularly significant as it plays a crucial role in global media coverage. The ability for spyware to infiltrate devices without any user action emphasizes the need for stronger security measures in ad systems and for organizations to be vigilant against such sophisticated attacks.

The threat actor known as Silent Lynx has been linked to a series of attacks targeting government agencies in the Commonwealth of Independent States (CIS) from June 2025 to August 2026. These attacks utilize various methods to deploy malware, including macro-enabled documents, PS2EXE downloaders, PowerShell scripts hosted on GitHub, and specifically crafted WinRAR archives. The use of these techniques allows attackers to establish reverse shells on compromised systems, giving them remote access. This situation is particularly concerning for government organizations, as it compromises sensitive information and operational security. The ongoing threat demonstrates the need for heightened vigilance and security measures in these sectors.

Around 700 supermarkets in France were affected by a cyberattack targeting refrigeration systems, specifically those operated by Copeland and Dixell. The attackers have not claimed responsibility for the incident, which raises concerns about the security of critical infrastructure in the retail sector. This incident not only disrupts operations but also poses risks to food safety, as refrigeration systems are essential for preserving perishable goods. The attack highlights the vulnerabilities in supply chain technology and the potential for significant operational disruptions if such systems are compromised. As supermarkets work to recover, it remains crucial for organizations to bolster their cybersecurity measures to prevent similar attacks in the future.

Next.js has rolled out an urgent security patch that addresses two serious vulnerabilities allowing unauthenticated remote code execution (RCE) and a high-severity denial-of-service (DoS) issue. The first RCE flaw is linked to React Server Components, while the second involves librsvg, an open-source library used by Next.js for processing SVG images through the sharp package. This update, released on October 14, is crucial for developers using Next.js, as it can prevent attackers from executing malicious code on affected systems. Users should apply this patch promptly to protect their applications from potential exploitation. The vulnerabilities could have serious implications for any web applications relying on Next.js, making swift remediation essential.

Drupal has patched a serious vulnerability in its Field UI module that could allow attackers to execute code on affected servers. This flaw, identified by the Drupal Security Team, cannot be exploited directly through the core system alone; however, several contributed modules can provide pathways for exploitation. Notably, at least one of these paths does not require user authentication, making it particularly concerning for site administrators. The security update was released on October 14 and affects Drupal versions 11.4.10, 11.3.19, and 10.6.19. It is crucial for users of these versions to apply the updates promptly to prevent potential attacks.

A new wave of cyberattacks is targeting US companies through fake AI products. Attackers are mimicking popular AI software to spread malware, hijack browser sessions, and compromise business accounts. Research from ANY.RUN identified over 1,200 instances of these campaigns between April and October 2026, with a significant portion of the attacks aimed at US businesses. This surge in malicious activity is putting additional strain on Managed Security Service Providers (MSSPs), who are struggling to keep up with the growing threat. Companies need to be vigilant about the authenticity of AI tools they use and ensure they have adequate security measures in place to protect against these deceptive tactics.

A credential-theft campaign named GhostAction has recently intensified, affecting around 1,900 GitHub accounts. This attack, observed by GitGuardian on October 8 and 9, 2026, targeted over 30,000 repositories linked to approximately 3,000 users and organizations. The attackers aimed to extract sensitive information, specifically 3,174 secrets from public repositories' Continuous Integration (CI) systems. This incident raises significant concerns for developers and organizations using GitHub, as compromised accounts can lead to unauthorized access and potential data breaches. Users are advised to secure their accounts and monitor their repositories for any suspicious activity.