{"id":"CVE-2026-42880","sourceIdentifier":"security-advisories@github.com","published":"2026-05-07T23:16:32.450","lastModified":"2026-10-26T20:10:00.160","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Argo CD es una herramienta de entrega continua declarativa, GitOps para Kubernetes. Desde las versiones 3.2.0 hasta antes de la 3.2.11 y de la 3.3.0 hasta antes de la 3.3.9, existe una brecha de autorización y enmascaramiento de datos faltante en el endpoint ServerSideDiff de Argo CD que permite a un atacante con acceso de solo lectura extraer datos de Secret de Kubernetes en texto plano de etcd a través del mecanismo de simulación (dry-run) de Aplicación del Lado del Servidor (Server-Side Apply) del servidor API de Kubernetes. Este problema ha sido parcheado en las versiones 3.2.11 y 3.3.9."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"argoproj","product":"argo-cd","versions":[{"version":">= 3.2.0, < 3.2.11","status":"affected"},{"version":">= 3.3.0, < 3.3.9","status":"affected"}]}]},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","affectedData":[{"vendor":"Red Hat","product":"Red Hat OpenShift GitOps 1.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift-gitops-1/argocd-image-updater-rhel8","cpes":["cpe:/a:redhat:openshift_gitops:1.19::el8"],"versions":[{"version":"1779211412","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift GitOps 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