CVE-2026-45737Argo CD: Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does not fully sanitize ResourceDiff.TargetState and LiveState predicted live Secret objects, allowing sensitive data, stringData, and annotations to appear in UI or CLI diffs. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/argoproj/argo-cd/security/advisories/GHSA-rg3g-4rw9-gqrp ExploitVendor Advisory
• https://github.com/argoproj/argo-cd/commit/7879e6322465080a82d152bf00f2b92e0f36c658 Patch
• https://github.com/argoproj/argo-cd/commit/87e9148320749693624d08e3d6fa2cc217c672a0 Patch
• https://github.com/argoproj/argo-cd/commit/ac11bec9986807adc8886ef1181eced7347ef5c6 Patch
• https://github.com/argoproj/argo-cd/commit/bcb4298afc9fcff5f5d69f4e1db2d0a75983f42c Patch
• https://github.com/argoproj/argo-cd/releases/tag/v3.2.12 Release Notes
• https://github.com/argoproj/argo-cd/releases/tag/v3.3.10 Release Notes
• https://github.com/argoproj/argo-cd/releases/tag/v3.4.2 Release Notes