CVE-2026-41184 (GCVE-0-2026-41184)

Vulnerability from cvelistv5 – Published: 2026-05-28 15:47 – Updated: 2026-05-28 17:04
VLAI?
Title
ServiceAccount token disclosure via install-cni container logs
Summary
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.
Severity ?
6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L
CWE
  • CWE-532 - Insertion of sensitive information into log file
Assigner
References
Impacted products
Vendor Product Version
Tigera Calico Unaffected: 3.32.0 (semver)
Affected: 0 , < 3.31.6 (semver)
Create a notification for this product.
Credits
Behnam Shobiri Behnam Shobiri Anthony Tam Matt Dupre Casey Davenport
Show details on NVD website
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