Red Hat disclosed a critical flaw in its Advanced Cluster Management for Kubernetes that lets a user with only namespace-level edit rights escalate to full cluster administrator. Tracked as CVE-2026-10090 and scored 9.9, the bug is in the application subscription controller: a low-privileged user can create a channel pointing to a Helm repository they control, then a subscription referencing it, and the controller deploys the chart using its own elevated permissions without checking the requester's authorization. It is a confused-deputy problem that crosses the namespace-to-cluster boundary. Because namespace edit access is often granted broadly to developers, many multi-tenant clusters could be exposed, and no fix was available at disclosure.
Researchers at XLab detailed NadMesh, a Go based botnet spreading since early July that hunts exposed AI and automation services rather than raw computing power. A reconnaissance module queries a public device search engine for internet facing instances of tools like Ollama, ComfyUI, n8n, Open WebUI, Langflow, and Gradio, then works through more than twenty exploitation paths. What it ships home is credentials: cloud access keys pulled from environment variables, Kubernetes service account tokens, and the contents of files like .env and Docker configuration. Callable tool endpoints on AI integration servers sit at the top of the operator's priority list, above Kubernetes and exposed Docker APIs.
Researchers at Synacktiv disclosed an unpatched flaw in Argo CD, the popular GitOps tool for deploying to Kubernetes, that can lead to full cluster takeover. The problem is in repo-server, the component that turns Git repository files into Kubernetes manifests: its internal gRPC service requires no authentication, so anyone who can reach it on the cluster network can send a crafted request and run commands. Synacktiv reported it about eighteen months ago, but there is still no fix and no CVE, so it went public to warn users. With no patch, the practical defense is network isolation using Kubernetes network policies.
Microsoft has refused to issue a CVE for what an outside researcher and the CERT Coordination Center both describe as a privilege escalation in Azure Backup for Azure Kubernetes Service. The flaw lets a user holding only the low-privileged 'Backup Contributor' Azure role gain cluster-admin on AKS clusters, which Microsoft dismissed by saying the attacker 'already held administrator access.' CERT/CC validated the bug and tracked it as VU#284781. The researcher says Microsoft also tried to get MITRE to reject the submission as 'AI-generated content,' then quietly added new permission checks, suggesting a silent patch even as Microsoft says 'no product changes were made.'
Trend Micro disclosed Quasar Linux (QLNX), a previously undocumented Linux remote access trojan designed for developer workstations and DevOps environments. The malware harvests credentials for npm, PyPI, GitHub, AWS, Docker, and Kubernetes - then uses them to publish trojanized packages to public registries. QLNX runs entirely fileless and in-memory, dynamically compiling its rootkit and PAM backdoor on the target host using gcc, then loading them via /etc/ld.so.preload for system-wide interception. Capabilities include a 58-command RAT, dual-layer rootkit, keylogging, SSH lateral movement, and peer-to-peer mesh networking. Only four security tools detect the binary as malicious.
TrustStrike Labs