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CVE-2026-42880

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CVE-2026-42880

Published: May 7, 2026

Modified: May 14, 2026

PUBLISHED

CVSS v3.1

9.6

CRITICAL

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.

VendorProductVersions

argoproj

argo-cd

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

Weaknesses (CWE)

CWE-200
CWE-212

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

References

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