PYSEC-2026-691 OpenStack Nova Exposure of Sensitive Information to an Unauthorized Actor

OpenStack Nova before 2012.1 allows someone with access to an EC2ACCESSKEY equivalent to a username to obtain the EC2SECRETKEY equivalent to a password. Exposing the EC2ACCESSKEY via http or tools that allow man-in-the-middle over https could allow an attacker to easily obtain the EC2SECRETKEY. A...

PYSEC-2026-690 Openstack nova qcow format could expose host filesystem information

Versions of nova before 2012.1 could expose hypervisor host files to a guest operating system when processing a maliciously constructed qcow filesystem...

PYSEC-2026-693 Open Redirect in CPython that affects users of OpenStack Nova

A vulnerability was found in CPython which is used by openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL...

CVE-2026-46448

A flaw was found in OpenStack Nova. The server creation application programming interface API fails to remove specific hint data, leading to instances being created without proper Placement allocation. This can result in a denial of service, as resources may not be correctly assigned or managed f...

Linux Distros Unpatched Vulnerability : CVE-2026-46448

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation. CVE-2026-46448 Note...

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

Affects - Nova: =18.0.0 =32.0.0 =33.0.0 33.0.2 Description Erichen from the Institute of Computing Technology, Chinese Academy of Sciences reported that Nova's server create API does not strip internal scheduler hints. An authenticated user can bypass Placement resource claims and scheduling...

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...

CVE-2026-46448

OpenStack Nova before 33.0.2 is affected: the server create API does not strip internal _nova-prefixed scheduler hints, causing instances to be created without proper Placement allocation. This can enable resource misallocation and, in worst cases, denial of service through compute-node resource ...

UBUNTU-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...

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...

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...

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...

RHSA-2026:7884 Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) security update

Bulletin has no description...

Important: Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) security update

An update for openstack-nova is now available for Red Hat OpenStack Services on OpenShift 18.0.18 Antelope. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

openstack-nova-compute: Arbitrary Host File Overwrite via Unconstrained qemu-img Format Handling in OpenStack Nova

A flaw in OpenStack Nova’s interaction with the qemu-img utility allows an authenticated user to overwrite arbitrary files on the compute host. This occurs because Nova invokes qemu-img without strictly constraining the disk image format, enabling a malicious user to craft a QCOW2 header on a raw...

RHEL 9 : Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) (RHSA-2026:7884)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:7884 advisory. OpenStack Compute nova is open source software designed to provision and manage large networks of virtual machines, creating a redundant and scalable...

OpenStack Nova calls qemu-img without format restrictions for resize

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in a...

GHSA-M4F3-QP2W-GWH6 OpenStack Nova calls qemu-img without format restrictions for resize

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in a...

CVE-2026-24708

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in a...

CVE-2026-24708

A flaw in OpenStack Nova’s interaction with the qemu-img utility allows an authenticated user to overwrite arbitrary files on the compute host. This occurs because Nova invokes qemu-img without strictly constraining the disk image format, enabling a malicious user to craft a QCOW2 header on a raw...