Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Tigera / Calico | unaffected 3.32.0; affected 0 before 3.31.6 |
CWE
CWE-532
References
- https://github.com/projectcalico/calico/pull/12502
- https://github.com/projectcalico/calico/pull/12527
- https://github.com/projectcalico/calico/pull/12526
- https://www.tigera.io/security-bulletins/tta-2026-001/
ADP enrichment
No English description supplied.
No references supplied.