CVE-2026-42880
Critical · 9.6CVSS
9.6
EPSS
0.6%
Published
May 7, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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