Vulnerabilities (CVE)

Filtered by vendor Canonical Subscribe
Total 4319 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-62420 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: <target>, and target: <member>, the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project.
CVE-2026-66897 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
A path traversal vulnerability in LXD's instance template processing allows an attacker with container edit permissions, or any user launching a crafted image, to overwrite arbitrary files on the host system as root. When processing target template paths specified in metadata.yaml, LXD validates the path against a confined os.Root directory handle but subsequently opens and creates the file using os.Create with an unconfined string path. This discrepancy between path resolution checks and file creation allows an attacker to escape directory confinement, overwrite root-owned host files, and achieve host root code execution.
CVE-2026-63296 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration. When migrating an instance to a target project, LXD accepts configuration overrides without validating the new configuration against the target project's enforced restrictions. An attacker can exploit this flaw to move instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.
CVE-2026-63295 1 Canonical 1 Lxd 2026-10-24 N/A 4.3 MEDIUM
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass project-level container isolation restrictions. When a project is configured with restrictions on container privileges (such as enforcing restricted.containers.privilege=isolated), LXD fails to enforce the requirement if an instance configuration omits the security.idmap.isolated key. An attacker can exploit this flaw by creating or updating an instance without explicitly setting security.idmap.isolated, bypassing the target project's security constraints.
CVE-2026-63300 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An improper validation vulnerability in the instancePostMigration function in lxd/instance_post.go of LXD allows an authenticated attacker with can_create_instances permissions on a restricted project to bypass project-level security restrictions. When migrating an instance between projects, LXD fails to validate the instance's configuration against the target project's enforced restrictions (such as restricted.containers.lowlevel, restricted.devices.*, and restricted.networks.access). An attacker can exploit this by creating a disallowed or high-privilege instance in an unrestricted project and subsequently moving it into the restricted project.
CVE-2026-63299 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.
CVE-2026-63297 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An authorization bypass vulnerability in LXD due to a timing flaw during configuration merging allows an authenticated attacker to bypass target project restrictions during cross-project instance copies. When copying an instance to a target project, LXD performs restriction checks before configuration merging is complete, creating a time-of-check to time-of-use (TOCTOU) condition. An attacker can exploit this flaw to copy instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.
CVE-2026-63293 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations on the host system. When importing or unpacking an image archive, LXD fails to validate whether the metadata.yaml file is a symbolic link. An attacker can exploit this flaw by providing a crafted image archive with a symlinked metadata.yaml file pointing to target file paths on the host system.
CVE-2026-63294 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
A link following vulnerability in LXD allows an attacker to achieve root command execution on the host system. During the import or unpacking of crafted image or backup archives, LXD fails to properly validate and confine the backup.yaml file when it exists as a symbolic link. An attacker can exploit this flaw by providing a malicious archive with a symlinked backup.yaml file, causing LXD to process unconfined configuration metadata and execute arbitrary commands with root privileges.
CVE-2026-63298 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying newline characters within the 'nvidia.driver.capabilities' or 'nvidia.require.*' configuration values, an attacker can manipulate the generated lxc.conf file. This flaw enables the attacker to execute arbitrary code on the host system with the privileges of the LXD daemon.
CVE-2026-66898 1 Canonical 1 Lxd 2026-10-24 N/A 9.9 CRITICAL
A path traversal vulnerability in LXD allows an attacker to manipulate file system paths during backup import and restore operations. When importing or restoring a backup archive, LXD fails to validate instance and storage volume names contained within the archive metadata. An attacker can exploit this flaw by supplying a crafted backup archive with malicious instance or volume names containing path traversal sequences, potentially allowing file access or overwriting outside the designated restore directory.
CVE-2025-54289 1 Canonical 1 Lxd 2026-10-23 N/A 8.1 HIGH
Privilege Escalation in operations API in Canonical LXD <6.5 on multiple platforms allows attacker with read permissions to hijack terminal or console sessions and execute arbitrary commands via WebSocket connection hijacking format
CVE-2026-16033 1 Canonical 1 Lxd 2026-10-23 N/A 8.5 HIGH
A path traversal vulnerability in LXD allows an attacker to achieve arbitrary host file read or unconstrained file creation. When processing image metadata templates, LXD fails to properly sanitize or restrict template file paths from escaping the instance templates directory (specifically affecting virtual machine / QEMU driver execution paths). An attacker can exploit this flaw by providing a crafted image archive with malicious template directives containing path traversal sequences, causing LXD to access or write files outside the intended template directory on the host system.
CVE-2026-13367 7 Canonical, Hp, Ibm and 4 more 9 Ubuntu Linux, Hp-ux, Aix and 6 more 2026-10-23 N/A 7.8 HIGH
IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit setuid-root utility.
CVE-2026-13476 7 Canonical, Hp, Ibm and 4 more 9 Ubuntu Linux, Hp-ux, Aix and 6 more 2026-10-23 N/A 7.3 HIGH
IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.
CVE-2025-26466 3 Canonical, Debian, Openbsd 3 Ubuntu Linux, Debian Linux, Openssh 2026-10-21 N/A 5.9 MEDIUM
A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.
CVE-2025-33208 2 Canonical, Nvidia 2 Ubuntu Linux, Tao Toolkit 2026-10-18 N/A 8.8 HIGH
NVIDIA TAO contains a vulnerability where an attacker may cause a resource to be loaded via an uncontrolled search path. A successful exploit of this vulnerability may lead to escalation of privileges, data tampering, denial of service, information disclosure.
CVE-2025-7044 1 Canonical 1 Maas 2026-10-18 N/A 7.7 HIGH
An Improper Input Validation vulnerability exists in the user websocket handler of MAAS. An authenticated, unprivileged attacker can intercept a user.update websocket request and inject the is_superuser property set to true. The server improperly validates this input, allowing the attacker to self-promote to an administrator role. This results in full administrative control over the MAAS deployment.
CVE-2018-8014 5 Apache, Canonical, Debian and 2 more 9 Tomcat, Ubuntu Linux, Debian Linux and 6 more 2026-10-15 7.5 HIGH 9.8 CRITICAL
The defaults settings for the CORS filter provided in Apache Tomcat 9.0.0.M1 to 9.0.8, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, 7.0.41 to 7.0.88 are insecure and enable 'supportsCredentials' for all origins. It is expected that users of the CORS filter will have configured it appropriately for their environment rather than using it in the default configuration. Therefore, it is expected that most users will not be impacted by this issue.
CVE-2018-1305 4 Apache, Canonical, Debian and 1 more 6 Tomcat, Ubuntu Linux, Debian Linux and 3 more 2026-10-15 4.0 MEDIUM 6.5 MEDIUM
Security constraints defined by annotations of Servlets in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 were only applied once a Servlet had been loaded. Because security constraints defined in this way apply to the URL pattern and any URLs below that point, it was possible - depending on the order Servlets were loaded - for some security constraints not to be applied. This could have exposed resources to users who were not authorised to access them.