VYPR
Medium severity6.5NVD Advisory· Published May 28, 2026· Updated Jun 5, 2026

CVE-2026-41184

CVE-2026-41184

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.

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Affected products

5
  • Projectcalico/Calicoreferences2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)
  • Tigera/Calico3 versions
    cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*+ 2 more
    • cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*range: <22.4.0
    • cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*range: <3.21.7
    • cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*range: <3.32.0

Patches

Vulnerability mechanics

References

4

News mentions

0

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