{"id":"BIT-argo-cd-2026-42880","summary":"ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction","details":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism. This issue has been patched in versions 3.2.11 and 3.3.9.","aliases":["CVE-2026-42880","CVE-2026-43824","GHSA-3v3m-wc6v-x4x3","GO-2026-5099"],"modified":"2026-09-08T08:46:19.321977174Z","published":"2026-05-11T05:36:42.515Z","database_specific":{"severity":"Critical","cpes":["cpe:2.3:a:linuxfoundation:argo_continuous_delivery:*:*:*:*:*:kubernetes:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42880"},{"type":"WEB","url":"https://access.redhat.com/errata/RHBA-2026:12433"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:20943"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:20947"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-42880"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467882"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42880.json"}],"affected":[{"package":{"name":"argo-cd","ecosystem":"Bitnami","purl":"pkg:bitnami/argo-cd"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.2.0"},{"fixed":"3.2.11"},{"introduced":"3.3.0"},{"fixed":"3.3.9"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/argo-cd/BIT-argo-cd-2026-42880.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}