CVE-2026-46448

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-06-16 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: None
I: Low
A: High

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
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 & Advisories (3)

https://bugs.launchpad.net/nova/+bug/2151252
Exploit Issue Tracking Third Party Advisory

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H

EPSS — Exploitation Probability

0.27%
Raw Score 0.002720
Percentile 19.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00272
2026-10-28
0.00272

Intelligence Sources

nvd ref →