{"id":"GHSA-9p7w-w5q6-mxj3","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.","aliases":["CVE-2026-41184","GO-2026-5888"],"modified":"2026-07-07T16:11:15.998194510Z","published":"2026-05-28T18:30:32Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-07-02T18:01:02Z","nvd_published_at":"2026-05-28T17:16:22Z","cwe_ids":["CWE-532"]},"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"}],"affected":[{"package":{"name":"github.com/projectcalico/calico","ecosystem":"Go","purl":"pkg:golang/github.com/projectcalico/calico"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"3.31.6"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-9p7w-w5q6-mxj3/GHSA-9p7w-w5q6-mxj3.json"}},{"package":{"name":"github.com/projectcalico/calico","ecosystem":"Go","purl":"pkg:golang/github.com/projectcalico/calico"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.11.0-cni-plugin.0.20260417001138-cd73bc2cea0f"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-9p7w-w5q6-mxj3/GHSA-9p7w-w5q6-mxj3.json"}}],"schema_version":"1.9.0","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"}]}