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marin3r

MARIN3R is a lightweight, CRD based envoy control plane for kubernetes. In versions 0.13.3 and below, there is a cross-namespace secret access vulnerability in the project's DiscoveryServiceCertificate which allows users to bypass RBAC and access secrets in unauthorized namespaces. This issue is fixed in version 0.13.4.

CVE-2025-64171 is a vulnerability classified under CWE-862 (Missing Authorization) found in the marin3r project, a lightweight, Custom Resource Definition (CRD) based Envoy control plane designed for Kubernetes environments. The flaw exists in versions 0.13.3 and earlier within the DiscoveryServiceCertificate component, which manages certificate discovery and secret access across Kubernetes namespaces. Due to insufficient authorization checks, users can bypass Kubernetes Role-Based Access Control (RBAC) restrictions and access secrets stored in namespaces to which they should not have access. This cross-namespace secret access vulnerability compromises the confidentiality of sensitive data such as credentials, tokens, or keys stored as Kubernetes secrets. The vulnerability requires no authentication or user interaction and can be exploited remotely over the network, making it highly accessible to attackers with access to the cluster. The CVSS 4.0 vector (AV:N/AC:L/AT:N/UI:N/VC:H/VI:N/VA:N) reflects a network attack vector with low complexity, no privileges or user interaction needed, and a high impact on confidentiality. The issue was addressed in marin3r version 0.13.4 by implementing proper authorization checks to enforce namespace boundaries and prevent unauthorized secret access. Although no known exploits are reported in the wild, the severity and ease of exploitation make this a critical vulnerability for Kubernetes clusters using marin3r. Organizations relying on this control plane should prioritize upgrading to the fixed version and auditing their secret management and RBAC policies to ensure no unauthorized access is possible.

Detailed information about CVE-2025-64171: CWE-862: Missing Authorization in 3scale-sre marin3r affecting 3scale-sre marin3r. Get real-time updates, technical d

CVE-2025-64171: CWE-862: Missing Authorization in 3scale-sre marin3r - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-64171: CWE-862: Missing Authorization in 3scale-sre marin3r

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