Kubernetes Audit Logs and HAProxy Logs for SOC Evidence

One of the most important topics my team has been following this year is designing and implementing a SOC service for cloud-native workloads at ReeVo. We started with the preventative layer. We designed and tuned a solid set of posture rules through our CNAPP solution, covering misconfigurations, risky privileges, and known bad patterns across our clusters. The platform also gives us runtime-security capabilities to identify suspicious behaviour as it occurs. That part is working well. ...

August 26, 2026 · 8 min · 1546 words · Matteo Bisi

CVE-2026-31431 Copy Fail: A Nine-Year-Old Kernel Bug, a 732-Byte Script, and a Root Shell

On April 29, 2026, CVE-2026-31431 was publicly disclosed. Nicknamed “Copy Fail”, it is a local privilege escalation in the Linux kernel with a CVSS score of 7.8, present in every major distribution running kernel 4.13 or later: Ubuntu, RHEL, Amazon Linux, SUSE, Rocky Linux. What makes it stand out from most CVEs in this class is how little an attacker needs: a 732-byte Python script, standard library only, no compilation, no race conditions, no kernel offsets. First try, every time. ...

May 1, 2026 · 7 min · 1393 words · Matteo Bisi