Nova

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 an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.

Published: 2026-02-18T00:00:00.000Z
Updated: 2026-02-21T04:31:45.294Z

In OpenStack Nova before 27.4.1, 28 before 28.2.1, and 29 before 29.1.1, by supplying a raw format image that is actually a crafted QCOW2 image with a backing file path or VMDK flat image with a descriptor file path, an authenticated user may convince systems to return a copy of the referenced file's contents from the server, resulting in unauthorized access to potentially sensitive data. All Nova deployments are affected. NOTE: this issue exists because of an incomplete fix for CVE-2022-47951 and CVE-2024-32498.

Published: 2024-07-24T00:00:00.000Z
Updated: 2025-11-04T16:12:31.887Z

An issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbitrary file access can occur via custom QCOW2 external data. By supplying a crafted QCOW2 image that references a specific data file path, an authenticated user may convince systems to return a copy of that file's contents from the server, resulting in unauthorized access to potentially sensitive data. All Cinder and Nova deployments are affected; only Glance deployments with image conversion enabled are affected.

Published: 2024-07-05T00:00:00.000Z
Updated: 2025-11-04T16:12:13.552Z

An issue was discovered in OpenStack Cinder before 19.1.2, 20.x before 20.0.2, and 21.0.0; Glance before 23.0.1, 24.x before 24.1.1, and 25.0.0; and Nova before 24.1.2, 25.x before 25.0.2, and 26.0.0. By supplying a specially created VMDK flat image that references a specific backing file path, an authenticated user may convince systems to return a copy of that file's contents from the server, resulting in unauthorized access to potentially sensitive data.

Published: 2023-01-26T00:00:00.000Z
Updated: 2025-03-31T16:49:31.493Z

An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service. Only Nova deployments configured with SR-IOV are affected.

Published: 2022-08-03T06:43:44.000Z
Updated: 2024-08-03T10:29:20.965Z

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

Published: 2022-03-02T00:00:00.000Z
Updated: 2024-08-03T17:01:07.959Z

An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.

Published: 2020-08-26T18:45:28.000Z
Updated: 2024-08-04T13:53:16.983Z

An issue was discovered in OpenStack Nova before 17.0.12, 18.x before 18.2.2, and 19.x before 19.0.2. If an API request from an authenticated user ends in a fault condition due to an external exception, details of the underlying environment may be leaked in the response, and could include sensitive configuration or other data.

Published: 2019-08-09T18:21:04.000Z
Updated: 2024-08-05T00:19:41.228Z

An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. (The same code error also results in data loss, but that is not a vulnerability because the user loses their own data.) All Nova setups supporting encrypted volumes are affected.

Published: 2018-02-19T17:00:00.000Z
Updated: 2024-08-05T21:13:49.181Z

In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.

Published: 2017-11-14T17:00:00.000Z
Updated: 2024-08-05T20:20:05.208Z

The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

Published: 2016-04-12T14:00:00.000Z
Updated: 2024-08-05T23:17:50.583Z

An issue was discovered in OpenStack Nova before 18.2.4, 19.x before 19.1.0, and 20.x before 20.1.0. It can leak consoleauth tokens into log files. An attacker with read access to the service's logs may obtain tokens used for console access. All Nova setups using novncproxy are affected. This is related to NovaProxyRequestHandlerBase.new_websocket_client in console/websocketproxy.py.

Published: 2020-02-19T02:11:06.000Z
Updated: 2024-08-06T08:51:05.311Z

The volume_utils._parse_volume_info function in OpenStack Compute (Nova) before 2015.1.3 (kilo) and 12.0.x before 12.0.1 (liberty) includes the connection_info dictionary in the StorageError message when using the Xen backend, which might allow attackers to obtain sensitive password information by reading log files or other unspecified vectors.

Published: 2016-01-15T19:00:00.000Z
Updated: 2024-08-06T08:29:21.589Z

OpenStack Compute (Nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) do not properly apply security group changes, which allows remote attackers to bypass intended restriction by leveraging an instance that was running when the change was made.

Published: 2015-10-29T20:00:00.000Z
Updated: 2024-08-06T07:58:59.895Z

OpenStack Compute (Nova) before 2015.1.3 (kilo) and 12.0.x before 12.0.1 (liberty), when using libvirt to spawn instances and use_cow_images is set to false, allow remote authenticated users to read arbitrary files by overwriting an instance disk with a crafted image and requesting a snapshot.

Published: 2016-01-12T19:00:00.000Z
Updated: 2024-08-06T07:51:28.584Z

The image parser in OpenStack Cinder 7.0.2 and 8.0.0 through 8.1.1; Glance before 11.0.1 and 12.0.0; and Nova before 12.0.4 and 13.0.0 does not properly limit qemu-img calls, which might allow attackers to cause a denial of service (memory and disk consumption) via a crafted disk image.

Published: 2016-10-07T14:00:00.000Z
Updated: 2024-08-06T06:41:07.567Z

OpenStack Compute (nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) does not properly delete instances from compute nodes, which allows remote authenticated users to cause a denial of service (disk consumption) by deleting instances while in the resize state.

Published: 2015-10-26T17:00:00.000Z
Updated: 2024-08-06T05:39:32.083Z

OpenStack Compute (nova) 2015.1 through 2015.1.1, 2014.2.3, and earlier does not stop the migration process when the instance is deleted, which allows remote authenticated users to cause a denial of service (disk, network, and other resource consumption) by resizing and then deleting an instance.

Published: 2015-09-08T15:00:00.000Z
Updated: 2024-08-06T05:39:32.092Z

OpenStack Compute (Nova) before 2014.1.4, 2014.2.x before 2014.2.3, and kilo before kilo-3 does not validate the origin of websocket requests, which allows remote attackers to hijack the authentication of users for access to consoles via a crafted webpage.

Published: 2015-04-01T14:00:00.000Z
Updated: 2024-08-06T04:03:10.856Z

Race condition in the VMware driver in OpenStack Compute (Nova) before 2014.1.4 and 2014.2 before 2014.2rc1 allows remote authenticated users to access unintended consoles by spawning an instance that triggers the same VNC port to be allocated to two different instances.

Published: 2014-10-15T14:00:00.000Z
Updated: 2024-08-06T13:26:02.969Z

The VMware driver in OpenStack Compute (Nova) before 2014.1.4 allows remote authenticated users to cause a denial of service (disk consumption) by deleting an instance in the resize state.

Published: 2014-10-31T14:00:00.000Z
Updated: 2024-08-06T13:18:46.441Z

The strutils.mask_password function in the OpenStack Oslo utility library, Cinder, Nova, and Trove before 2013.2.4 and 2014.1 before 2014.1.3 does not properly mask passwords when logging commands, which allows local users to obtain passwords by reading the log.

Published: 2014-10-08T19:00:00.000Z
Updated: 2024-08-06T12:40:19.265Z

The processutils.execute function in OpenStack oslo-incubator, Cinder, Nova, and Trove before 2013.2.4 and 2014.1 before 2014.1.3 allows local users to obtain passwords from commands that cause a ProcessExecutionError by reading the log.

Published: 2014-10-08T19:00:00.000Z
Updated: 2024-08-06T12:40:19.269Z

OpenStack Compute (Nova) before 2014.1.4 and 2014.2.x before 2014.2.1 allows remote authenticated users to cause a denial of service (CPU consumption) via an IP filter in a list active servers API request.

Published: 2014-10-31T14:00:00.000Z
Updated: 2024-08-06T10:50:18.332Z

The VMWare driver in OpenStack Compute (Nova) before 2014.1.3 allows remote authenticated users to bypass the quota limit and cause a denial of service (resource consumption) by putting the VM into the rescue state, suspending it, which puts into an ERROR state, and then deleting the image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-2573.

Published: 2014-10-06T14:00:00.000Z
Updated: 2024-08-06T10:50:17.772Z

api/metadata/handler.py in OpenStack Compute (Nova) before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2, when proxying metadata requests through Neutron, makes it easier for remote attackers to guess instance ID signatures via a brute-force attack that relies on timing differences in responses to instance metadata requests.

Published: 2014-08-07T10:00:00.000Z
Updated: 2024-08-06T10:43:06.334Z

OpenStack Compute (Nova) Grizzly 2013.1.4, Havana 2013.2.1, and earlier uses world-writable and world-readable permissions for the temporary directory used to store live snapshots, which allows local users to read and modify live snapshots.

Published: 2014-01-23T21:00:00.000Z
Updated: 2024-08-06T17:53:45.862Z

The libvirt driver in OpenStack Compute (Nova) before 2013.2.2 and icehouse before icehouse-2 allows remote authenticated users to cause a denial of service (disk consumption) by creating and deleting instances with unique os_type settings, which triggers the creation of a new ephemeral disk backing file.

Published: 2014-03-06T15:00:00.000Z
Updated: 2024-08-06T17:39:01.271Z

OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-2 does not properly enforce the os-flavor-access:is_public property, which allows remote authenticated users to obtain sensitive information (flavor properties), boot arbitrary flavors, and possibly have other unspecified impacts by guessing the flavor id.

Published: 2013-09-16T19:00:00.000Z
Updated: 2024-08-06T15:27:41.073Z

OpenStack Compute (Nova) Essex before 2011.3 allows remote authenticated users to cause a denial of service (Nova-API log file and disk consumption) via a long server name.

Published: 2012-08-17T00:00:00.000Z
Updated: 2024-08-06T19:01:02.665Z

Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.

Published: 2011-12-23T22:00:00.000Z
Updated: 2024-08-07T00:09:19.335Z

OpenStack Nova before 2012.1 allows someone with access to an EC2_ACCESS_KEY (equivalent to a username) to obtain the EC2_SECRET_KEY (equivalent to a password). Exposing the EC2_ACCESS_KEY via http or tools that allow man-in-the-middle over https could allow an attacker to easily obtain the EC2_SECRET_KEY. An attacker could also presumably brute force values for EC2_ACCESS_KEY.

Published: 2019-11-26T03:53:58.000Z
Updated: 2024-08-06T23:53:32.881Z

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

Published: 2019-04-22T15:35:58.896Z
Updated: 2024-09-16T18:38:54.968Z