Vulnerability record · CVE-2026-41184 · published 28 May 2026

CVE-2026-41184: Tigera calico sensitive information in log file vulnerability

Tigera · Calico

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.

6.0 CVSS 4.0 Medium EPSS 0.53% · top 57.7% CWE-532 · Sensitive information in log file

6.0CVSS 4.0 base score

0.53%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Calico Tigera

References

Link	Tags
https://github.com/projectcalico/calico/pull/12502	Issue TrackingPatch
https://github.com/projectcalico/calico/pull/12526	Issue TrackingPatch
https://github.com/projectcalico/calico/pull/12527	Issue TrackingPatch
https://www.tigera.io/security-bulletins/tta-2026-001/	MitigationVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-41184), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.