CVE-2026-41185
MediumCVSS 6.5Summary
Podatność w Calico występuje, gdy jest skonfigurowany z wtyczką Azure IPAM, co prowadzi do modyfikacji konfiguracji CNI i logowania jej w pliku cni.log. Logi te zawierają wrażliwe dane, takie jak tokeny i klucze, w formie niezaszyfrowanej.
Risk Assessment
Organizacja narażona jest na ryzyko nieautoryzowanego dostępu do danych uwierzytelniających, co może prowadzić do przejęcia uprawnień administracyjnych w sieci Calico w całym klastrze.
Recommendation
Zaleca się ograniczenie dostępu do pliku /var/log/calico/cni/cni.log oraz rozważenie szyfrowania wrażliwych danych logów, aby zminimalizować ryzyko wycieku informacji.
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Original NVD description (English source)
When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation — once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

