Introduction to CVE-2026-25742 Vulnerability The cybersecurity landscape changes rapidly, and new vulnerabilities can pose risks to your infrastructure. The CVE-2026-25742 vulnerability in Zulip highlights the need for robust server security measures. System administrators and hosting providers must stay vigilant to protect Linux servers from potential threats. Understanding CVE-2026-25742 Prior to version 11.6, Zulip, an open-source […]

Understanding CVE-2026-26058: A Path Traversal Vulnerability in Zulip Zulip is an open-source team collaboration tool. Recently, a critical vulnerability, CVE-2026-26058, was discovered which could impact server security. This vulnerability exists from version 1.4.0 through to just before version 11.6, allowing attackers to exploit servers by leveraging path traversal techniques during the import process. What Happened? […]

Introduction to CVE-2026-25742 Vulnerability The cybersecurity landscape changes rapidly, and new vulnerabilities can pose risks to your infrastructure. The CVE-2026-25742 vulnerability in Zulip highlights the need for robust server security measures. System administrators and hosting providers must stay vigilant to protect Linux servers from potential threats. Understanding CVE-2026-25742 Prior to version 11.6, Zulip, an open-source […]

Understanding CVE-2026-26058: A Path Traversal Vulnerability in Zulip Zulip is an open-source team collaboration tool. Recently, a critical vulnerability, CVE-2026-26058, was discovered which could impact server security. This vulnerability exists from version 1.4.0 through to just before version 11.6, allowing attackers to exploit servers by leveraging path traversal techniques during the import process. What Happened? […]

Our team at BitNinja tries to make a habit of visiting the great community conference called DevConf every year. It is an event hosted by Red Hat in the beautiful city of Brno in the Czech Republic. The presentations and talks take place at the Brno University of Technology (those buildings that are a unique combination […]

Our Hungarian web hosting partner, web-server.hu had ZERO website infections – since enabling BitNinja’s new WAF 2.0 module. We caught up with the lead sysadmin to talk to him about his experience with BitNinja. What has been your experience with BitNinja overall? “Before we began using  BitNinja, we had to fight daily battles with hackers. […]

Update: WAF 2.0 became mature. Wooow! Are you ready for something new? Well, we have it!  The long-awaited BitNinja WAF 2.0 beta is now here! Currently, this beta is available for everyone who has Pro or Trial license. But wait! Before you go running to our Dashboard, to switch it on … please take a […]

As you know, providing all-in-one server security, BitNinja protects 3000+ Linux web servers worldwide, capturing 100 million incidents a month and keeping 1.7 million suspicious IP addresses in its blocklists to protect you and your customers. Mixing that up with custom infrastructures, configurations, and software in each sometimes leads to a high load on the server. Despite […]

Start the New Year with this security quiz to test your knowledge and get a chance to receive the latest edition of ‘The Art of Server Protection’ e-book, or -- win our BitNinja Server Security for 1 month, absolutely free.  What a great way to start the New Year! Our ninjas created a short quiz […]

As we promised before, our article series inspired by V-day is continuing. Those who are provisioning servers day by day, certainly have some doubts about their process: being time-consuming, non-repeatable, hard to test or simply just something is going wrong in the existing infrastructure during the provisioning. There are opportunities to test failover or rollback processes, […]

What do you think about SPAMs? Most of us think they are useless and heavily annoying, but not for everybody. There are some geeks, who totally understand the background and find it rubbish, but sometimes they read them to “entertain themselves” and learn more about the recent patterns hacker tactics. Have you ever found a hidden […]

Bugs are always hunting us.  Recently we found some bugs during our work, but keep calm, they're not in the BitNinja agent. 😉 Let’s see what we explored: ModSecurity bug: empty comment line In our WAF2.0 (beta will come soon) we implemented ModSecurity as well as the OWASP’s core ruleset. Recently, our developers found a […]

No matter if you’re a Linux security veteran or you’re just about to get your feet wet, you’ll face the same security threats and upcoming attacks forms. Here we come with a security cheat sheet with ultimate checkpoints that no sysadmins should miss. When meeting new company, usually the very first thing I’m asked about […]

CVE-2026-28766: A Critical Vulnerability in Gardyn Cloud API The Gardyn Cloud API has exposed a severe vulnerability known as CVE-2026-28766. This critical flaw allows unauthorized access to all user account data without any authentication requirements. Understanding the Incident This vulnerability has been given a CVSS score of 9.3, indicating a critical risk level. It enables […]

Understanding CVE-2026-28767: A Critical Vulnerability In recent cybersecurity news, a major vulnerability has been identified as CVE-2026-28767. This flaw in the Gardyn Cloud API allows unauthorized access to sensitive administrative endpoints. It raises significant concerns for server security, particularly for system administrators and hosting providers. Details of the Vulnerability The CVE-2026-28767 vulnerability relates to a […]

Critical Vulnerability in Gardyn Cloud API: CVE-2026-25197 The recent discovery of a severe vulnerability in the Gardyn Cloud API has raised significant alarms in the cybersecurity community. This vulnerability, known as CVE-2026-25197, allows authenticated users to access other user profiles by modifying the ID number within the API call. This oversight opens the door to […]