Vulnerability · Published Jun 4, 2026 · Assigned by mitre
CVE-2026-50589
Medium 5.3
In plain English
A medium-severity resource allocation without limits in Ironic from OpenStack. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 62.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | ironic | 1:35.0.1-5 | DEBIAN-CVE-2026-50589 |
| PyPI | ironic | 37.0.0 | GHSA-q3g8-rjrx-59ph |
| PyPI | ironic | 37.0.0 | PYSEC-2026-216 |
| Ubuntu:22.04:LTS | ironic | no fix listed | UBUNTU-CVE-2026-50589 |
| Ubuntu:24.04:LTS | ironic | no fix listed | UBUNTU-CVE-2026-50589 |
| Ubuntu:25.10 | ironic | no fix listed | UBUNTU-CVE-2026-50589 |
| Ubuntu:26.04:LTS | ironic | no fix listed | UBUNTU-CVE-2026-50589 |
| Ubuntu:26.10 | ironic | no fix listed | UBUNTU-CVE-2026-50589 |
Affected products (as reported)
Weakness: CWE-770, CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://bugs.launchpad.net/ironic/+bug/2154288
- https://wiki.openstack.org/wiki/OSSN/OSSN-0099
- http://www.openwall.com/lists/oss-security/2026/06/06/2
- https://access.redhat.com/security/cve/CVE-2026-50589 vdb-entry, x_refsource_REDHAT
- RHBZ#2485353 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50589.json x_sadp-csaf-vex