Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

For about thirty years, security has rested on the assumption that the measures guarding your systems do not have opinions. A firewall does not care how politely you ask it to open a port. An SQL filter does not weigh the context of a query before deciding whether to pass it through. An authentication check does not get distracted or talked round. You either present the right credential or you do not, and the answer is the same every time you ask.

A high-severity double-free vulnerability in Apache HTTP Server 2.4.66 allows low-privileged attackers to remotely crash vulnerable servers through a crafted HTTP/2 request sequence, with a demonstrated path to remote code execution on common Linux deployments. Tracked as CVE-2026-23918, the vulnerability exists in Apache’s mod_http2 module and affects deployments using multi-threaded MPMs such as worker and event.

Top tips is a weekly column where we highlight what’s trending in the tech world and share ways to stay ahead. This week, we’re looking at how the gap between a vulnerability and an attack is shrinking rapidly. A vulnerability is discovered. It could be a small bug, a missed update, or a gap in how a system is configured. It gets reported, documented, and sometimes even publicly disclosed. For a long time, there used to be an extended window between discovery and attack.

BOSTON, May 7, 2026 — Snyk, the AI security company, today announced it is leveraging Anthropic's Claude models to advance software security in an era of AI-powered development. Starting today, Snyk has integrated Claude into the Snyk AI Security Platform — powering automated vulnerability discovery, prioritization, and developer-ready fixes across code, dependencies, containers, and AI-generated artifacts. The threat driving that integration is real and accelerating.

On May 6, 2026, Palo Alto Networks disclosed a critical buffer overflow vulnerability (CVE-2026-0300) in the User-ID Authentication Portal (Captive Portal) component of PAN-OS. This vulnerability allows an unauthenticated, remote attacker to execute arbitrary code with root privileges on affected PA-Series and VM-Series firewalls by sending specially crafted packets. No user interaction or credentials are required.

On April 29, 2026, a Linux kernel local privilege escalation vulnerability was publicly disclosed under the name "Copy Fail" (CVE-2026-31431). Cloudflare’s Security and Engineering teams began assessing the vulnerability as soon as it was disclosed. We reviewed the exploit technique, evaluated exposure across our infrastructure, and validated that our existing behavioral detections could identify the exploit pattern within minutes.

CVE-2026-0300 is a critical buffer overflow vulnerability in the User-ID Authentication Portal (Captive Portal) of Palo Alto Networks PAN-OS. It allows unauthenticated remote attackers to send specially crafted packets and execute arbitrary code with root privileges on affected PA-Series and VM-Series firewalls. The flaw, actively exploited in the wild since early May 2026, stems from improper handling of input in the authentication portal service.