How severe is CVE-2026-46448?

CVE-2026-46448 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability low.

Is CVE-2026-46448 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46448?

CVE-2026-46448 affects Openstack Nova. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46448?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-46448 have an EU (EUVD) identifier?

Yes. CVE-2026-46448 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37218.

When was CVE-2026-46448 published?

CVE-2026-46448 was published on 2026-06-16 and last updated on 2026-06-26.

CVE-2026-46448

CVE-2026-46448 is a medium-severity vulnerability in Openstack Nova with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-669.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37218
Weakness: CWE-669
Affected product: Openstack Nova
Published: 2026-06-16
Last modified: 2026-06-26

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.

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 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability low.
Is CVE-2026-46448 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46448?: CVE-2026-46448 affects Openstack Nova. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46448?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-46448 have an EU (EUVD) identifier?: Yes. CVE-2026-46448 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37218.
When was CVE-2026-46448 published?: CVE-2026-46448 was published on 2026-06-16 and last updated on 2026-06-26.

References

Affected products (1)

cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*

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