OS command injection in OpenStack Ironic Python Agent
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 9 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-78.
Summary
In OpenStack Ironic Python Agent through 11.6.0, a project-scoped user with the manager role can achieve arbitrary code execution on a running Ironic-Python-Agent via a maliciously constructed configuration, because the value of ntp_server is passed to a shell.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Red Hat 9 advisories
- RHSA-2026:82785 Released 2026-10-22 · Red Hat rating ImportantOpenShift Container Platform 4.14.76 bug fix and security update
- Red Hat OpenShift Container Platform 4.14 registry.redhat.io/openshift4/ose-alibaba-cloud-controller-manager-rhel8, registry.redhat.io/openshift4/ose-azure-file-csi-driver-rhel8, registry.redhat.io/openshift4/ose-baremetal-rhel8-operator +9
- RHSA-2026:82813 Released 2026-10-22 · Red Hat rating ImportantOpenShift Container Platform 4.15.70 bug fix and security update
- Red Hat OpenShift Container Platform 4.15 registry.redhat.io/openshift4/kube-metrics-server-rhel8, registry.redhat.io/openshift4/ose-agent-installer-node-agent-rhel9, registry.redhat.io/openshift4/ose-alibaba-cloud-controller-manager-rhel9 +23
- RHSA-2026:70587 Released 2026-10-01 · Red Hat rating ImportantOpenShift Container Platform 4.17.58 bug fix and security update
- Red Hat OpenShift Container Platform 4.17 registry.redhat.io/openshift4/aws-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/azure-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/cloud-network-config-controller-rhel9 +47
Show 6 more Red Hat advisories
- RHSA-2026:67936 Released 2026-09-24 · Red Hat rating ImportantOpenShift Container Platform 4.16.71 bug fix and security update
- Red Hat OpenShift Container Platform 4.16 registry.redhat.io/openshift4/aws-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/azure-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/cloud-network-config-controller-rhel9 +47
- RHSA-2026:65852 Released 2026-09-17 · Red Hat rating ImportantOpenShift Container Platform 4.18.55 bug fix and security update
- Red Hat OpenShift Container Platform 4.18 registry.redhat.io/openshift4/aws-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/ose-apiserver-network-proxy-rhel9, registry.redhat.io/openshift4/ose-azure-cluster-api-controllers-rhel9 +19
- RHSA-2026:63047 Released 2026-09-09 · Red Hat rating ImportantOpenShift Container Platform 4.19.46 bug fix and security update
- Red Hat OpenShift Container Platform 4.19 registry.redhat.io/openshift4/egress-router-cni-rhel9, registry.redhat.io/openshift4/ose-baremetal-cluster-api-controllers-rhel9, registry.redhat.io/openshift4/ose-console-rhel9 +4
- RHSA-2026:60446 Released 2026-09-01 · Red Hat rating ImportantOpenShift Container Platform 4.20.36 bug fix and security update
- Red Hat OpenShift Container Platform 4.20 registry.redhat.io/openshift4/egress-router-cni-rhel9, registry.redhat.io/openshift4/ose-agent-installer-ui-rhel9, registry.redhat.io/openshift4/ose-azure-cluster-api-controllers-rhel9 +18
- RHSA-2026:60477 Released 2026-09-01 · Red Hat rating ImportantOpenShift Container Platform 4.21.31 bug fix and security update
- Red Hat OpenShift Container Platform 4.21 registry.redhat.io/openshift4/aws-karpenter-provider-aws-rhel9, registry.redhat.io/openshift4/egress-router-cni-rhel9, registry.redhat.io/openshift4/oc-mirror-plugin-rhel9 +20
- RHSA-2026:57365 Released 2026-08-25 · Red Hat rating ImportantOpenShift Container Platform 4.22.11 bug fix and security update
- Red Hat OpenShift Container Platform 4.22 registry.redhat.io/openshift4/aws-karpenter-provider-aws-rhel9, registry.redhat.io/openshift4/oc-mirror-plugin-rhel9, registry.redhat.io/openshift4/ose-agent-installer-ui-rhel9 +6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenStack Platform 17.1 | Affected | No fix yet |
| Red Hat OpenStack Platform 18.0 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4.14 | Fixed | RHSA-2026:82785 |
| Red Hat OpenShift Container Platform 4.15 | Fixed | RHSA-2026:82813 |
| Red Hat OpenShift Container Platform 4.16 | Fixed | RHSA-2026:67936 |
| Red Hat OpenShift Container Platform 4.17 | Fixed | RHSA-2026:70587 |
| Red Hat OpenShift Container Platform 4.18 | Fixed | RHSA-2026:65852 |
| Red Hat OpenShift Container Platform 4.19 | Fixed | RHSA-2026:63047 |
| Red Hat OpenShift Container Platform 4.20 | Fixed | RHSA-2026:60446 |
| Red Hat OpenShift Container Platform 4.21 | Fixed | RHSA-2026:60477 |
| Red Hat OpenShift Container Platform 4.22 | Fixed | RHSA-2026:57365 |
Not affected: 10 products
- Red Hat OpenShift Container Platform 4.14
- Red Hat OpenShift Container Platform 4.15
- Red Hat OpenShift Container Platform 4.16
- Red Hat OpenShift Container Platform 4.17
- Red Hat OpenShift Container Platform 4.18
- Red Hat OpenShift Container Platform 4.19
- Red Hat OpenShift Container Platform 4.20
- Red Hat OpenShift Container Platform 4.21
- Red Hat OpenShift Container Platform 4.22
- Red Hat OpenStack Platform 16.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66138
- 2026-10-03 Alias added: GHSA-wj9f-vqw7-855c
- 2026-10-23 EPSS moved to the below the 50th percentile
- 2026-10-23 Fix available: RHSA-2026:82813 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:82785 · Red Hat
- 2026-10-23 Fix available: Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15 · Red Hat
References
More OpenStack vulnerabilities
- TI-2026-78562 Incorrect authorization in OpenStack Manila share operations CVSS 3.1CRITICAL 9.9
- TI-2026-63467 Code injection in OpenStack Octavia CVSS 4.0CRITICAL 9.4
- TI-2017-13226 The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before… CVSS 3.1CRITICAL 9.8
- TI-2026-69629 OpenStack Mistral flaw lets users change other projects' resources CVSS 4.0HIGH 7.2
- TI-2026-69623 Command injection in OpenStack Mistral std.ssh_proxied action CVSS 4.0HIGH 8.7
- TI-2022-17779 Improper privilege management in OpenStack CVSS 3.1HIGH 8.8
Sources
- CVE-2026-66138 · CVE Program
- CVE-2026-66138 · NVD
- FIRST EPSS
- GHSA-wj9f-vqw7-855c · GitHub Advisory Database · CC BY 4.0
- CVE-2026-66138 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences