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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-46448

33
FAUCET Score

In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.

First published: Jun 16, 2026Last modified: Jun 16, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 18.0.0, < 31.3.1CPE matchmatch criteria
cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
>= 32.0.0, < 32.2.1CPE matchmatch criteria
cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
>= 33.0.0, < 33.0.2CPE matchmatch criteria
cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 7th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: novaFixed in: 32.2.1
pippatch availablevia ghsa
Product: novaFixed in: 33.0.2

Vendor Advisories (1)

pipGHSA-mfg3-p6m3-gjgrmedium

OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints

Jun 16, 2026

References

openwall.com / lists/oss-security/2026/06/16/5
Mailing ListThird Party Advisory
bugs.launchpad.net / nova/+bug/2151252
ExploitIssue TrackingThird Party Advisory
openwall.com / lists/oss-security/2026/06/16/5
Mailing ListThird Party Advisory