CVE-2026-15416 Argo-cd: argo cd unauthenticated remote code execution in repo-server via generatemanifest grpc endpoint
Unauthenticated attackers can execute code on the repo-server and compromise managed Kubernetes clusters via the GenerateManifest gRPC endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15416?
CVE-2026-15416 is a high-severity authentication bypass vulnerability in Red Hat OpenShift GitOps, published on 14 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-306
Which versions are affected by CVE-2026-15416?
How do I fix CVE-2026-15416?
No fix has been published for CVE-2026-15416 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-15416 being exploited?
There is no known exploitation of CVE-2026-15416 in the wild and no public exploit code.