High severity · published Jun 16, 2026
CVE-2026-46448
In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data
8.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
Nova · OpenStack
18.0.0 before 31.3.1; 32.0.0 before 32.2.1; 33.0.0 before 33.0.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46448
Exploit
https://bugs.launchpad.net/nova/+bug/2151252
Mailing List
https://www.openwall.com/lists/oss-security/2026/06/16/5
Mailing List
http://www.openwall.com/lists/oss-security/2026/06/16/5
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