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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-3v3m-wc6v-x4x3 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 11 May 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Argoproj argo Cd
CPEs cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*
Vendors & Products Argoproj argo Cd

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat openshift Gitops
Weaknesses CWE-201
CPEs cpe:/a:redhat:openshift_gitops:1.20::el9
Vendors & Products Redhat
Redhat openshift Gitops
References
Metrics threat_severity

None

threat_severity

Important


Fri, 08 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 07 May 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Argoproj
Argoproj argo-cd
Vendors & Products Argoproj
Argoproj argo-cd

Thu, 07 May 2026 22:45:00 +0000

Type Values Removed Values Added
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.
Title ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction
Weaknesses CWE-200
CWE-212
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-08T13:06:55.113Z

Reserved: 2026-04-30T18:49:06.711Z

Link: CVE-2026-42880

cve-icon Vulnrichment

Updated: 2026-05-08T13:06:50.353Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-07T23:16:32.450

Modified: 2026-05-11T17:46:18.257

Link: CVE-2026-42880

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-07T22:20:39Z

Links: CVE-2026-42880 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T18:00:14Z

Weaknesses