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TI-2023-20919 Aliases CVE-2023-40029GHSA-fwr2-64vr-xv9m

Cluster secret might leak in cluster details page in Argo CD

Priority HIGH 76CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-200.

Summary

Argo CD is a declarative continuous deployment for Kubernetes. Argo CD Cluster secrets might be managed declaratively using Argo CD / kubectl apply. As a result, the full secret body is stored in`kubectl.kubernetes.io/last-applied-configuration` annotation. pull request #7139 introduced the ability to manage cluster labels and annotations. Since clusters are stored as secrets it also exposes the `kubectl.kubernetes.io/last-applied-configuration` annotation which includes full secret body. In order to view the cluster annotations via the Argo CD API, the user must have `clusters, get` RBAC access. **Note:** In many cases, cluster secrets do not contain any actually-secret information. But sometimes, as in bearer-token auth, the contents might be very sensitive. The bug has been patched in versions 2.8.3, 2.7.14, and 2.6.15. Users are advised to upgrade. Users unable to upgrade should update/deploy cluster secret with `server-side-apply` flag which does not use or rely on `kubectl.kubernetes.io/last-applied-configuration` annotation. Note: annotation for existing secrets will require manual removal.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01196 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed argo-cd (argoproj): 2.6.15, 2.7.14, 2.8.3github.com/argoproj/argo-cd/v2 (Go): 2.6.15, 2.7.14, 2.8.3Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
argoprojargo-cd2.2.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.32.6.15, 2.7.14, 2.8.3Patch availableCNA
—github.com/argoproj/argo-cd/v2 (Go)2.2.0 to before 2.6.152.6.15Patch availableGHSA-fwr2-64vr-xv9m
—github.com/argoproj/argo-cd/v2 (Go)2.7.0 to before 2.7.142.7.14Patch availableGHSA-fwr2-64vr-xv9m
—github.com/argoproj/argo-cd/v2 (Go)2.8.0 to before 2.8.32.8.3Patch availableGHSA-fwr2-64vr-xv9m
  • argo-cd Vendorargoproj Affected 2.2.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3 Fixed in 2.6.15, 2.7.14, 2.8.3 Patch available CNA
  • github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.2.0 to before 2.6.15 Fixed in 2.6.15 Patch available GHSA-fwr2-64vr-xv9m
  • github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.7.0 to before 2.7.14 Fixed in 2.7.14 Patch available GHSA-fwr2-64vr-xv9m
  • github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.8.0 to before 2.8.3 Fixed in 2.8.3 Patch available GHSA-fwr2-64vr-xv9m

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*2.2.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3Vulnerableargoproj
  • cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* Versions 2.2.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3 Vulnerable ·argoproj

Remediation

  • Fix · CNA argo-cd (argoproj) Fixed in 2.6.15, 2.7.14, 2.8.3
  • Fix · GHSA-fwr2-64vr-xv9m github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.6.15 Advisory →
  • Fix · GHSA-fwr2-64vr-xv9m github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.7.14 Advisory →
  • Fix · GHSA-fwr2-64vr-xv9m github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.8.3 Advisory →

Red Hat 2 advisories

  • RHSA-2023:5030 Released 2023-09-08 · Red Hat rating Critical
    Red Hat OpenShift GitOps security update
    • Red Hat OpenShift GitOps 1.8 openshift-gitops-1/argocd-rhel8
  • RHSA-2023:5029 Released 2023-09-08 · Red Hat rating Critical
    Red Hat OpenShift GitOps security update
    • Red Hat OpenShift GitOps 1.9 openshift-gitops-1/argocd-rhel8

Vendor assessments

Red Hat

Red Hat rating: Critical. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift GitOps 1.8Fixed RHSA-2023:5030
Red Hat OpenShift GitOps 1.9Fixed RHSA-2023:5029
Not affected: 2 products
  • Red Hat OpenShift GitOps 1.8
  • Red Hat OpenShift GitOps 1.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40029
  2. 2026-10-03 Alias added: GHSA-fwr2-64vr-xv9m

References

Exploit 1

Patch 2

Advisory 1

Other 6

  • TI-2024-14377 Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss CVSS 3.1CRITICAL 9.8
  • TI-2024-14383 Argo CD vulnerable to Bypassing of Rate Limit and Brute Force Protection Using Cache Overflow CVSS 3.1CRITICAL 9.1
  • TI-2026-31086 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction CVSS 3.1CRITICAL 9.6
  • TI-2024-21088 ArgoCD Vulnerable to Use of Risky or Missing Cryptographic Algorithms in Redis Cache CVSS 3.1CRITICAL 9.1
  • TI-2026-33475 Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation CVSS 3.1HIGH 8.7
  • TI-2025-37068 Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook CVSS 3.1HIGH 7.5
See all 56 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences