Vulnerability · Published Jul 14, 2026 · Assigned by redhat
CVE-2026-15416Argo-cd: argo cd unauthenticated remote code execution in repo-server via generatemanifest grpc endpoint
High 8.9
In plain English
A high-severity missing authentication in argo-helm from argoproj. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
A flaw was identified in Argo CD, the GitOps engine used by Red Hat OpenShift GitOps, that could allow an unauthenticated attacker with network access to the Argo CD repo-server to achieve remote code execution. Under certain conditions, the attacker may then manipulate cached data to deploy malicious Kubernetes resources to managed clusters, potentially resulting in complete cluster compromise.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| argoproj | argo-helm | 0 – before 10.0.0 |
| Red Hat | Red Hat OpenShift GitOps 1.19 | see references |
| Red Hat | Red Hat OpenShift GitOps 1.19 | see references |
| Red Hat | Red Hat Openshift Data Foundation 4 | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
| Red Hat | Red Hat OpenShift GitOps | see references |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
References
- RHSA-2026:52857 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-15416 vdb-entry, x_refsource_REDHAT
- RHBZ#2496732 issue-tracking, x_refsource_REDHAT
- https://github.com/argoproj/argo-helm/commit/0f245ab
- https://github.com/argoproj/argo-helm/security/advisories/GHSA-47m3-95c7-g2g8
- https://thehackernews.com/2026/07/unpatched-argo-cd-repo-server-flaw.html
- https://www.synacktiv.com/en/publications/caught-in-the-octopus-trap-unauthenticated-rce-in-argo-cd-with-codeql