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Articles and practical guidance tagged security.

Malformed compressed HTTP data breaking through a Brotli decoder toward a server
Oct 26, 2026 securityhttp
CVE-2026-111497: Brotli HTTP Decompression Bug Risks RCE

CVE-2026-111497 is an out-of-bounds write in Google's Brotli decoder. It can expose services and clients that decompress attacker-controlled HTTP data to crashes, memory disclosure, or potentially code execution. Node.js, Bun, Envoy, Istio, and .NET have issued fixes, with exposure depending on how each application uses Brotli.

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A malicious hacker bot breaking out of a virtual machine boundary into a host server
Oct 19, 2026 securitylinux
PwnEscape (CVE-2026-99999): The Linux VM-to-Host Escape Risk

PwnEscape (CVE-2026-99999) is a Linux kernel networking flaw that lets a malicious virtual-machine guest target its host. Researchers confirmed host-memory disclosure in production sandboxes and demonstrated host crashes and host-root execution in controlled environments. Here is what the reports establish and what host operators should do.

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Illustration of Linux Tux under attack amid a zero-day style security incident
Apr 29, 2026 securitylinux
Everything We Know About Copy Fail CVE-2026-31431 So Far

Copy Fail (CVE-2026-31431) is a newly disclosed Linux local privilege escalation bug with a public proof of concept, broad distro impact, and serious consequences for shared servers, CI runners, and container hosts. Here is what is confirmed so far, how to check exposure, and how to remediate.

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