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Mallory
Critical

Privilege escalation via ArgoCD Custom Resources in OpenShift GitOps

IdentifiersCVE-2025-13888CWE-266· Incorrect Privilege Assignment

A privilege-escalation flaw in OpenShift GitOps where a namespace administrator can create crafted ArgoCD Custom Resources (CRs) that cause the system to grant elevated permissions in other namespaces, including privileged namespaces. With these cross-namespace elevated permissions, an authenticated attacker can create privileged workloads that can be scheduled onto master nodes, leading to effective root-level control of the entire OpenShift cluster.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation enables cluster takeover: the attacker can escalate from namespace-admin scope to elevated permissions in privileged namespaces, create privileged workloads on master nodes, and obtain root-equivalent access across the cluster, compromising confidentiality, integrity, and availability of the OpenShift environment.

Mitigation

If you can’t patch tonight, do this now.

Until patched, restrict who can create/modify ArgoCD Custom Resources (CRs) and reduce namespace-admin capabilities where OpenShift GitOps/ArgoCD CRDs are present. Apply stricter RBAC and/or admission controls to prevent untrusted users from creating ArgoCD CRs that could result in cross-namespace privilege grants, and monitor for suspicious creation of privileged workloads (especially those targeting master nodes).

Remediation

Patch, then assume compromise.

Upgrade OpenShift GitOps / the Red Hat gitops-operator package to a fixed release (noted in the provided advisory as 1.16.2 or later). Follow Red Hat advisories (e.g., RHSA-2025:23203) for the exact patched versions applicable to your deployment.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity9

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