Description
In OpenStack Ironic 32 through 35.0.1, an unauthenticated malicious user could submit a crafted JSON string to some endpoints on the API or JSON-RPC service and effect a service crash.
Published: 2026-06-04
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Clients can send a specially crafted JSON payload to specific endpoints in the Ironic API or JSON‑RPC service without authentication, which leads to an unhandled exception and causes the service to crash. The flaw is an instance of resource exhaustion (CWE‑770) and results in a denial of service rather than data compromise.

Affected Systems

The vulnerability exists in OpenStack Ironic versions 32 through 35.0.1. Versions earlier than 32 or later than 35.0.1 are not affected according to the vendor's data.

Risk and Exploitability

With a CVSS score of 5.3, the risk is moderate. No EPSS data is available, and the vulnerability is not listed in the CISA KEV catalog, suggesting no large‑scale exploitation has been observed. The likely attack vector is remote; an unauthenticated attacker can issue malicious JSON to the public API endpoints and force a crash, disrupting availability of the Ironic service.

Generated by OpenCVE AI on June 5, 2026 at 03:23 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade OpenStack Ironic to a version above 35.0.1 where the issue is fixed
  • Configure the Ironic API and JSON‑RPC services to require authentication before accepting requests
  • Limit access to the Ironic API endpoints to trusted networks or implement network segmentation

Generated by OpenCVE AI on June 5, 2026 at 03:23 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 05 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 05 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
First Time appeared Openstack
Openstack ironic
Vendors & Products Openstack
Openstack ironic

Fri, 05 Jun 2026 03:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated Malicious JSON Crash in OpenStack Ironic

Fri, 05 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Description In OpenStack Ironic 32 through 35.0.1, an unauthenticated malicious user could submit a crafted JSON string to some endpoints on the API or JSON-RPC service and effect a service crash.
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Subscriptions

Openstack Ironic
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-05T20:12:34.403Z

Reserved: 2026-06-04T23:59:19.739Z

Link: CVE-2026-50589

cve-icon Vulnrichment

Updated: 2026-06-05T20:12:31.017Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-05T00:17:09.213

Modified: 2026-06-05T16:06:10.940

Link: CVE-2026-50589

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-05T04:30:31Z

Weaknesses