{"id":"CVE-2023-40029","aliases":["BIT-argo-cd-2023-40029","GHSA-fwr2-64vr-xv9m","GO-2023-2049"],"url":"https://o3.security/vulnerability/CVE-2023-40029","summary":"Cluster secret might leak in cluster details page in Argo CD","details":"Argo CD is a declarative continuous deployment for Kubernetes. Argo CD Cluster secrets might be managed declaratively using Argo CD / kubectl apply. As a result, the full secret body is stored in`kubectl.kubernetes.io/last-applied-configuration` annotation. pull request #7139 introduced the ability to manage cluster labels and annotations. Since clusters are stored as secrets it also exposes the `kubectl.kubernetes.io/last-applied-configuration` annotation which includes full secret body. In order to view the cluster annotations via the Argo CD API, the user must have `clusters, get` RBAC access. **Note:** In many cases, cluster secrets do not contain any actually-secret information. But sometimes, as in bearer-token auth, the contents might be very sensitive. The bug has been patched in versions 2.8.3, 2.7.14, and 2.6.15. Users are advised to upgrade. Users unable to upgrade should update/deploy cluster secret with `server-side-apply` flag which does not use or rely on `kubectl.kubernetes.io/last-applied-configuration` annotation. Note: annotation for existing secrets will require manual removal.\n\n","published":"2023-09-07T22:11:56.361Z","modified":"2026-08-12T03:51:33.512374500Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.6.15"},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.7.14"},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.8.3"}],"fix":{"url":"https://github.com/argoproj/argo-cd/commit/4b2e5b06bff2ffd8ed1970654ddd8e55fc4a41c4","label":"argoproj/argo-cd@4b2e5b0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40029.json"},{"type":"ADVISORY","url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fwr2-64vr-xv9m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40029"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/commit/4b2e5b06bff2ffd8ed1970654ddd8e55fc4a41c4"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/pull/7139"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.512374500Z"}}