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GO-2026-5891

Published Jul 7, 2026·Last modified Jul 7, 2026

Affected Components(1)

github.com/projectcalico/calico

< 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f

Description

Calico Inserts Sensitive Information into Log File in github.com/projectcalico/calico.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/projectcalico/calico/v3 before v3.31.6.

Risk Scores

Base Score

0.0

Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.

Threat Intelligence

0.0

No exploitation activity has been observed at this time. Continue routine monitoring.

EPSS

0.32%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit

Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities

CVE-2026-41185
When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation — once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.
AliasMedium 6

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GO-2026-5891

Know every vulnerability
before it knows you.