AKS Path Traversal CVE-2026-32193 Can Escalate to Microsoft Copilot Hijack

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A vulnerability tracked as CVE-2026-32193, rated 8.8 CVSS, affects Azure Kubernetes Service's file path handling, allowing attackers to escape a restricted directory via uncanonicalised path sequences. Discovered amid a record 206-vulnerability Patch Tuesday in June 2026, the flaw was widely underreported due to its low EPSS score and misleading automated writeups. Exploiting the bug grants root access on a managed AKS node, exposing kubelet credentials, service account tokens, and cloud identity material. Researchers warn this node-level compromise can extend to Microsoft Copilot if the assistant's identity holds broad API permissions reachable from the hijacked node. Microsoft has issued a fix in AKS node image build v0.20260213.5, and administrators are advised to upgrade all node pools and audit federated service account permissions immediately.

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