CVE-2026-15416
HighCVSS 8.9Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
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.
Risk Assessment
The risk for the organization includes the possibility of remote code execution by an unauthenticated attacker, which could lead to manipulation of cached data and deployment of malicious Kubernetes resources, resulting in complete compromise of managed clusters and potential loss of control over the environment.
Recommendation
It is recommended to immediately update Argo CD to the latest patched version and restrict network access to the Argo CD repo-server to trusted hosts only.
Other vulnerabilities in Argo CD
See all- CVE-2026-42880Critical
In Argo CD versions 3.2.0 to 3.2.10 and 3.3.0 to 3.3.8, there is a missing authorization and data-masking gap in the ServerSideDiff endpoint. This allows an attacker with read-only access to extract plaintext Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism.
- CVE-2026-45738High
A vulnerability in Argo CD allows users with application write access to set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered as anchor href values in the Summary tab URLs section without URL validation, enabling JavaScript execution in a higher-privileged user's authenticated session. The issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.
- CVE-2026-45737Medium
Argo CD ServerSideDiff in versions 3.2.0 through 3.2.12, 3.3.10, and 3.4.2 fails to properly sanitize Kubernetes Secret data, potentially exposing sensitive values including those in the kubectl.kubernetes.io/last-applied-configuration annotation. This allows sensitive data to appear in the UI or CLI diffs.
- CVE-2026-43824High
A vulnerability in Argo CD versions 3.2.0 through 3.2.10 and 3.3.0 through 3.3.8 allows reading cleartext Kubernetes Secret data via the ServerSideDiff feature.
- CVE-2023-40025Medium
Argo CD, a GitOps continuous delivery tool for Kubernetes, has a bug in versions starting from 2.6.0 that causes open web terminal sessions to not expire. This allows users to send websocket messages even after the token has expired.
- CVE-2022-41354Medium
An access control issue in Argo CD v2.4.12 and below allows unauthenticated attackers to enumerate existing applications. The problem stems from missing proper access controls.
Original NVD description (English source)
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.