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CVE PROGRAM SOURCE RECORD9.6 Critical

CVE-2026-42880

ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

argoproj argo-cd

  • >= 3.2.0, < 3.2.11affected
  • >= 3.3.0, < 3.3.9affected

References