In Calico, the install-cni init container logs the rendered CNI configuration to standard output. When the configuration template uses the __SERVICEACCOUNT_TOKEN__ placeholder (Canal/Flannel-Calico deployments), the installer substitutes the live Kubernetes ServiceAccount bearer token before logging, exposing the token to any authenticated user with pods/log permission in the namespace with calico-node. The token holds patch privileges on pods/status, enabling annotation-based attacks against cluster workloads. The default kubeconfig-based authentication path is not affected. This is a direct regression of TTA-2018-001.
Metrics
Affected Vendors & Products
References
History
Thu, 28 May 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 28 May 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Calico, the install-cni init container logs the rendered CNI configuration to standard output. When the configuration template uses the __SERVICEACCOUNT_TOKEN__ placeholder (Canal/Flannel-Calico deployments), the installer substitutes the live Kubernetes ServiceAccount bearer token before logging, exposing the token to any authenticated user with pods/log permission in the namespace with calico-node. The token holds patch privileges on pods/status, enabling annotation-based attacks against cluster workloads. The default kubeconfig-based authentication path is not affected. This is a direct regression of TTA-2018-001. | |
| Title | ServiceAccount token disclosure via install-cni container logs | |
| First Time appeared |
Tigera
Tigera calico |
|
| Weaknesses | CWE-532 | |
| CPEs | cpe:2.3:a:tigera:calico:*:*:*:*:*:*:*:* cpe:2.3:a:tigera:calico:3.32.0:*:*:*:*:*:*:* |
|
| Vendors & Products |
Tigera
Tigera calico |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Tigera
Published:
Updated: 2026-05-28T17:04:36.059Z
Reserved: 2026-04-17T17:41:35.905Z
Link: CVE-2026-41184
Updated: 2026-05-28T17:04:33.558Z
Status : Received
Published: 2026-05-28T17:16:22.270
Modified: 2026-05-28T17:16:22.270
Link: CVE-2026-41184
No data.
OpenCVE Enrichment
Updated: 2026-05-28T18:30:23Z