CVSS 3.1 Score 4.3 of 10 (medium)


Published Nov 6, 2023
Updated: Nov 14, 2023
CWE ID 200


CVE-2023-46254 is a vulnerability that affects the capsule-proxy, which is a reverse proxy for the Capsule Kubernetes multi-tenancy framework. The bug in the RoleBinding reflector used by capsule-proxy allows ServiceAccount tenant owners to list Namespaces of other tenants backed by the same owner kind and name. This vulnerability can be exploited to exfiltrate information under specific conditions, such as when capsule-proxy runs with the --disable-caching=false flag and when Tenant owners are ServiceAccounts with the same resource name but in different Namespaces. The vulnerability has a CVSS base score of 4.3, indicating a medium severity level, and poses a potential risk to organizations as it allows unauthorized access to sensitive data across different Tenants. To remediate this vulnerability, organizations should update their capsule-proxy installation to the latest version that addresses this bug.

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