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.
Update github.com/projectcalico/calico to 3.31.6; github.com/projectcalico/calico to 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanCalico Inserts Sensitive Information into Log File affects github.com/projectcalico/calico (go), github.com/projectcalico/calico (go). Severity is medium. 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.
AI coding agents often install or upgrade packages automatically in go. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
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.
Update github.com/projectcalico/calico to 3.31.6; github.com/projectcalico/calico to 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanCalico Inserts Sensitive Information into Log File affects github.com/projectcalico/calico (go), github.com/projectcalico/calico (go). Severity is medium. 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.
AI coding agents often install or upgrade packages automatically in go. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
| github.com/projectcalico/calicogo | >=2.0.0,<3.31.6 | 3.31.6 |
|---|
| github.com/projectcalico/calicogo | <1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f | 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| github.com/projectcalico/calicogo | >=2.0.0,<3.31.6 | 3.31.6 |
|---|
| github.com/projectcalico/calicogo | <1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f | 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard