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CVE-2026-47701 affects the OpenTelemetry Operator for Kubernetes. The TargetAllocator component improperly preserves Prometheus Operator ServiceMonitor file-based authentication and TLS settings into generated Prometheus scrape configuration. Specifically, unsafe fields such as bearerTokenFile and related tlsConfig file path options (including caFile, certFile, and keyFile) can be propagated into the OpenTelemetry Collector scrape configuration instead of being rejected or sanitized. If an attacker can create or modify a ServiceMonitor that is selected by the TargetAllocator configuration, they can point these settings at arbitrary files on the Collector pod filesystem. During scraping, the Collector will read those local files and use their contents in outbound requests to the configured scrape target, allowing exfiltration of sensitive local files. Exposed material can include the mounted Kubernetes service account token, certificates, private keys, and other tokens present in the pod.
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