Medium [CVE-2026-71201] Information disclosure via crafted request
This medium-severity Red Hat Linux advisory covers CVE-2026-71201 affecting Red Hat OpenShift Container Platform 4, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2.
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Summary
In OpenStack Ironic through 38.0.0, a project reader that makes a crafted request to Ironic can return Portgroups assigned to Nodes owned or leased by another project. A project reader can exploit this vulnerability by sending a specially crafted request to the Ironic service.
This allows the reader to access Portgroups that are assigned to Nodes belonging to or leased by other projects, leading to unauthorized information disclosure. This flaw has a moderate impact as OpenStack Ironic contains an authorization flaw in the Portgroups listing API.
When a project-scoped reader lists portgroups by shard name, the service fails to apply the per-project ownership filter that it correctly applies on other listing paths, allowing the reader to enumerate portgroups belonging to nodes owned or leased by other projects.
Exploitation requires valid project-reader credentials and knowledge of a target shard name, and discloses only portgroup metadata (no modification or availability impact), so the severity is limited to information disclosure across project boundaries.
Red Hat OpenShift's baremetal (metal3) deployment runs Ironic as a single-tenant control-plane service and does not expose the multi-project reader RBAC path required for exploitation. Red Hat severity: Moderate — CVSS 5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N).
Weakness: CWE-639.
- 38.0.0
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
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