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Advisories
SUSE Perl-Cpanel-JSON-XS Key Type Confusion Denial of Service 2026-2782-1
An update that solves two vulnerabilities can now be installed.
Oracle Linux 8 Ruby Important DoS Fixes Advisory ELSA-2026-33515
The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:
Oracle Linux 8 Kernel Important Threats Advisory ELSA-2026-50374
The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:
Fedora 43 kernel-headers 7.1.3 Significant CVE-2026-53359 Resolution
The 7.1.3 stable kernel rebase contains new features, improved hardware support, and a number of important fixes across the tree. This also has a fix for CVE-2026-53359
Fedora 43 Kernel 7.1.3 Important CVE-2026-53359 Security Update
The 7.1.3 stable kernel rebase contains new features, improved hardware support, and a number of important fixes across the tree. This also has a fix for CVE-2026-53359
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Featured Articles
How to Detect Unauthorized SSH Key Usage on Linux Systems
SSH persistence usually does not look malicious at first. The login succeeds normally, the session...
Monitoring East-West Traffic with Suricata: Finding Threats Inside Your Network
Most security teams are locked into a perimeter-first mindset. They obsess over north-south...
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AryStinger: Why Thousands of Unpatched Linux Routers Are Being Weaponized
More than 4,300 internet-facing devices have been pulled into a newly documented router malware...
Does Linux Give Users a False Sense of Security? What This Year's Biggest Linux Security Incidents Actually Reveal
If more than 12 million enterprise systems can be exposed by flaws in a security control designed...
Cron Job Abuse For Linux Persistence Mechanisms Detection
A Linux server gets cleaned up after an intrusion. The suspicious process is terminated,...
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Latest Linux Security News
The Hidden Cost of Enterprise SSH Authentication
How Linux Security Teams Can Prioritize Real-World Attack Paths and Reduce Alert Fatigue
Linux security teams are drowning. Patches, kernel updates, new CVEs every week. SSH exposed here, an old web service there, and a forgotten cron job running as root. On top of that, SIEM dashboards blink all day with alerts that all claim to be “hig...
Linux Security Roundup: Prioritizing This Week's Critical Updates
Before you close out the week, check what still needs to be patched.
Trending News
HOWTOs
Detection-as-Code for Linux: Building Security Rules That Last
One of the easiest mistakes to make in detection engineering is assuming a rule keeps working simply because nobody has touched it. Most of the time, nobody removes the rule. Nobody disables it. It just gets forgotten.
How to Check Docker Container Isolation in Linux
Docker makes containers feel like separate, lightweight virtual machines. They have their own hostnames, processes, and networking—but are they actually isolated? Many administrators assume they are without ever verifying the boundaries. If you’ve ev...
How to Investigate Linux Persistence During Incident Response
You’re staring at a service or a cron job that’s giving you a bad feeling. Stop. The most dangerous thing you can do right now is act on that gut feeling alone. Linux systems are inherently noisy—package managers, configuration management, and the oc...
How to Build Behavioral Detections with eBPF on Linux
Building effective behavioral detections starts with understanding how processes behave at runtime, rather than simply collecting more logs. eBPF gives Linux security teams the visibility needed to correlate those behaviors into meaningful detections...
How to Read Linux Audit Logs During an Intrusion
When a security alert fires, the panic often sets in before the analysis. Many administrators instinctively reach for /var/log/auth.log or journalctl, but those logs tell only a partial story. They document successful logins and authentication attemp...
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