CVE-2026-41184: Github.com/projectcalico/calico Calico Inserts Sensitive Information Into Vulnerability
MODERATECVE-2026-41184 is a MODERATE (CVSS 6.5) calico inserts sensitive information into vulnerability (CWE-532: Insertion of Sensitive Information into Log File) affecting Github.com/projectcalico/calico libraries in the Go ecosystem. The issue involves calico inserts sensitive information into log file. Remediation is available by upgrading affected packages to version 3.31.6, 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f.
CVE-2026-41184 at a Glance
Security Impact
CVSS: 6.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2026-41184
To remediate this vulnerability, upgrade all affected Github.com/projectcalico/calico dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/projectcalico/calico to 3.31.6Upgrade github.com/projectcalico/calico to 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0fRun the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/projectcalico/calicoHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-41184, inspect your project dependencies for Github.com/projectcalico/calico:
inspect dependencies for github.com/projectcalico/calicoAnalyze the terminal output to locate any version of Github.com/projectcalico/calico in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.31.6), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-532: Insertion of Sensitive Information into Log File, where the product writes sensitive information to a log file. In Github.com/projectcalico/calico, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-41184 Affected Github.com/projectcalico/calico Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/projectcalico/calico
|
Go |
≥ 2.0.0
< 3.31.6
|
3.31.6
|
|
github.com/projectcalico/calico
|
Go |
< 1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f
|
1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f
|
References
Frequently Asked Questions
What is CVE-2026-41184?
Which Github.com/projectcalico/calico versions are affected?
What version fixes CVE-2026-41184?
Is github.com/projectcalico/calico affected?
What is the CVSS score of CVE-2026-41184?
What CWE is associated with CVE-2026-41184?
How can I check Go dependencies for CVE-2026-41184?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-9p7w-w5q6-mxj3",
"modified" : "2026-07-02T18:01:02Z",
"published" : "2026-05-28T18:30:32Z",
"aliases" : [ "CVE-2026-41184" ],
"summary" : "Calico Inserts Sensitive Information into Log File",
"details" : "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" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}, {
"type" : "CVSS_V4",
"score" : "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"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/projectcalico/calico"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.0.0"
}, {
"fixed" : "3.31.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/projectcalico/calico"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-41184"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/pull/12502"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/pull/12526"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/pull/12527"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/commit/0ca653db0ae7400ea9fb066daa7f45c902482271"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/commit/cd73bc2cea0f4989772f2deb93909e7cfac927e0"
}, {
"type" : "WEB",
"url" : "https://github.com/projectcalico/calico/commit/da9ea3a13927a35e4022b787d17a005b2157d812"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/projectcalico/calico"
}, {
"type" : "WEB",
"url" : "https://www.tigera.io/security-bulletins/tta-2026-001"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-532" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-07-02T18:01:02Z",
"nvd_published_at" : "2026-05-28T17:16:22Z"
}
}