CVE-2026-41184 : faille moyenne tigera calico (CVSS 6.5)

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.

Sévérité

Moyenne (CVSS 6.5)

Vecteur CVSS

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation active

Non signalée par la CISA

Publication

28 mai 2026

Dernière mise à jour

17 juin 2026

• tigera calico

• Fiche CVE-2026-41184 sur le NVD (NIST)
• github.com/projectcalico/calico/pull/12502
• github.com/projectcalico/calico/pull/12526
• github.com/projectcalico/calico/pull/12527
• tigera.io/security-bulletins/tta-2026-001/