CVE-2026-50589 Details
Description
In OpenStack Ironic 32 before 37.0.0, 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.
A denial-of-service vulnerability has been identified in OpenStack Ironic versions 32.0.0 through 35.0.1. The issue allows an unauthenticated user to send a maliciously crafted JSON payload to certain API endpoints, including the JSON-RPC service. This exploitation can lead to a service crash. Although the vulnerability theoretically exists, it is often mitigated by common deployment practices that include reverse proxies and WSGI servers, which limit request body sizes. However, in environments where these protections are not in place, such as with direct JSON-RPC access, the vulnerability can be exploited.
A patch has been developed and merged into the OpenStack Ironic master branch. This patch adds middleware to limit the depth and size of JSON bodies before they are parsed, addressing the vulnerability. Operators can also manually increase the stack size as a temporary workaround.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 9, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-50589 | redhat-SADP | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2485353 | redhat-SADP | |
| https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50589.json | redhat-SADP | |
| https://bugs.launchpad.net/ironic/+bug/2154288 | CISA-ADP | Issue TrackingMitigation |
| http://www.openwall.com/lists/oss-security/2026/06/06/2 | CVE | Mailing ListPatchThird Party Advisory |
| https://bugs.launchpad.net/ironic/+bug/2154288 | [email protected] | Issue TrackingMitigation |
| https://wiki.openstack.org/wiki/OSSN/OSSN-0099 | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | redhat-SADP |
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openstack ironic | >= 32.0.0, < 37.0.0 |
CPE
Remediation
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Change History
11 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jul 8, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 16, 2026 | Initial Analysis | [email protected] |
| Jun 9, 2026 | CVE Modified | CISA-ADP |
| Jun 6, 2026 | CVE Modified | CVE |
| Jun 6, 2026 | CVE Modified | [email protected] |
| Jun 5, 2026 | New CVE Received | [email protected] |