CVE-2023-23947

Argo CD users with any cluster secret update access may update out-of-bounds cluster secrets

Published Feb 16, 2023 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All Argo CD versions starting with 2.3.0-rc1 and prior to 2.3.17, 2.4.23 2.5.11, and 2.6.2 are vulnerable to an improper authorization bug which allows users who have the ability to update at least one cluster secret to update any cluster secret. The attacker could use this access to escalate privileges (potentially controlling Kubernetes resources) or to break Argo CD functionality (by preventing connections to external clusters). A patch for this vulnerability has been released in Argo CD versions 2.6.2, 2.5.11, 2.4.23, and 2.3.17. Two workarounds are available. Either modify the RBAC configuration to completely revoke all `clusters, update` access, or use the `destinations` and `clusterResourceWhitelist` fields to apply similar restrictions as the `namespaces` and `clusterResources` fields.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-0613 Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All Argo CD versions starting with 2.3.0-rc1 and prior to 2.3.17, 2.4.23 2.5.11, and 2.6.2 are vulnerable to an improper authorization bug which allows users who have the ability to update at least one cluster secret to update any cluster secret. The attacker could use this access to escalate privileges (potentially controlling Kubernetes resources) or to break Argo CD functionality (by preventing connections to external clusters). A patch for this vulnerability has been released in Argo CD versions 2.6.2, 2.5.11, 2.4.23, and 2.3.17. Two workarounds are available. Either modify the RBAC configuration to completely revoke all `clusters, update` access, or use the `destinations` and `clusterResourceWhitelist` fields to apply similar restrictions as the `namespaces` and `clusterResources` fields.
Github GHSA Github GHSA GHSA-3jfq-742w-xg8j Users with any cluster secret update access may update out-of-bounds cluster secrets
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Mar 10, 2025, 9:10 PM
Reserved
Jan 19, 2023, 9:12 PM
Status
Modified
Published
Feb 16, 2023, 6:15 PM
Modified
Jun 17, 2026, 5:38 AM
Severity
Important
Public date
Feb 16, 2023, 8:51 PM