Is CVE-2026-46448 in the CISA KEV catalog?

No. CVE-2026-46448 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-46448?

CVE-2026-46448 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2026-46448?

CVE-2026-46448 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-46448?

Upgrade nova on debian unstable to 2:33.0.1-4 or later.

CVE & CISA-KEV Catalog

CVE-2026-46448

MEDIUM

5.4

CVSS v3

NVD

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.

CWE-669

How to fix

Remediation Available

novaDebian

Fixed in:2:33.0.1-4CVE-2026-46448

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Exploit1

bugs.launchpad.net

Third-Party Advisory2

Embed a live status badge for CVE-2026-46448

Markdown

[![CVE-2026-46448](https://tridentstack.com/cve/badge/CVE-2026-46448.svg)](https://tridentstack.com/cve/CVE-2026-46448)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-46448"><img src="https://tridentstack.com/cve/badge/CVE-2026-46448.svg" alt="CVE-2026-46448"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.