CVE-2026-46448
HIGHCVSS 8.5/10EPSS 0.26%
Last modified
CVE-2026-46448 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Nova | >= 18.0.0, < 31.3.1 |
| Openstack | Nova | >= 32.0.0, < 32.2.1 |
| Openstack | Nova | >= 33.0.0, < 33.0.2 |
References
- https://bugs.launchpad.net/nova/+bug/2151252Exploit, Issue Tracking, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2026/06/16/5Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/06/16/5Mailing List, Third Party Advisory
- https://bugs.launchpad.net/nova/+bug/2151252Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-46448?
In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.
How severe is CVE-2026-46448?
CVE-2026-46448 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2026-46448?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-46448?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST