CVE-2026-41184

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-41184
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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/projectcalico/calico/pull/12502 Issue Tracking Patch
https://github.com/projectcalico/calico/pull/12526 Issue Tracking Patch
https://github.com/projectcalico/calico/pull/12527 Issue Tracking Patch
https://www.tigera.io/security-bulletins/tta-2026-001/ Mitigation Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*
History

05 Jun 2026, 17:05

Type Values Removed Values Added
CPE cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*
References () https://github.com/projectcalico/calico/pull/12502 - () https://github.com/projectcalico/calico/pull/12502 - Issue Tracking, Patch
References () https://github.com/projectcalico/calico/pull/12526 - () https://github.com/projectcalico/calico/pull/12526 - Issue Tracking, Patch
References () https://github.com/projectcalico/calico/pull/12527 - () https://github.com/projectcalico/calico/pull/12527 - Issue Tracking, Patch
References () https://www.tigera.io/security-bulletins/tta-2026-001/ - () https://www.tigera.io/security-bulletins/tta-2026-001/ - Mitigation, Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5
First Time Tigera calico
Tigera

28 May 2026, 17:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-28 17:16

Updated : 2026-06-17 10:46

NVD link : CVE-2026-41184

Mitre link : CVE-2026-41184

CVE.ORG link : CVE-2026-41184

JSON object : View

Products Affected

tigera

  • calico
CWE
CWE-532

Insertion of Sensitive Information into Log File