Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:52857
- https://access.redhat.com/security/cve/CVE-2026-15416
- https://bugzilla.redhat.com/show_bug.cgi?id=2496732
- 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-unauthentic
FAQ
What is CVE-2026-15416?
CVE-2026-15416 is a vulnerability with a CVSS score of 8.9 (HIGH). 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...
How severe is CVE-2026-15416?
CVE-2026-15416 has been rated HIGH with a CVSS base score of 8.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15416?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.