Sicherheitslücken in incus

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Recursive File Pull

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability in sftpRecursivePullFile that allows a malicious incus-agent to escape the target directory during incus file pull -r. Attackers with root in a virtual machine can return duplicate entries reported first as symlinks then as files or directories, writing attacker-controlled files such as /etc/shadow on the operator's host.

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Symlink in Migration Stream

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that allows malicious migration sources to write host files by planting symlinks in transferred volumes. Attackers can craft rsync or btrfs receive streams with a symlink such as rootfs pointing to the host root, writing files as root for full host compromise.

• Auf 6.0.4-2+deb13u11 aktualisieren

Incus 7.0.1 before 7.0.2 and 7.2.0 before 7.5.0 Project Restriction Bypass via Custom Volume Copy

Incus 7.0.1 before 7.0.2 and 7.2.0 before 7.5.0 contains an authorization bypass vulnerability that allows project-restricted clients to copy volumes by omitting source.type. Attackers can send crafted POST requests to the custom volumes endpoint with a chosen source.project to copy and read other projects' volumes, snapshots, and configuration.

• Auf 6.0.4-2+deb13u11 aktualisieren

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Authorization Bypass via GET /1.0/operations/{uuid}

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains a missing authorization vulnerability in GET /1.0/operations/{uuid} that lets project-restricted clients read operations in other projects. Attackers holding a restricted certificate and a known operation UUID can retrieve command lines, environment secrets, websocket secrets, and trust enrolment tokens.

• Auf 6.0.4-2+deb13u11 aktualisieren

Incus 7.3.0 before 7.5.0 Project Restriction Bypass via block.create_options

Incus from 7.3.0 before 7.5.0 contains a project restriction bypass that allows restricted project users to set block.create_options through volume update, copy, and move operations. Attackers can set the option on a custom volume and trigger a copy or move onto a formatting pool to inject arguments into mkfs executed as root.

• Auf 6.0.4-2+deb13u11 aktualisieren

LXC Incus 6.0.3 before 6.0.7, 6.6.0 before 7.0.2, and 7.1.0 before 7.5.0 Bucket Credential Disclosure via Storage Bucket Keys Endpoints

Incus 6.0.3 before 6.0.7, 6.6.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an improper authorization vulnerability that allows restricted TLS clients to read storage bucket keys in the default project. Attackers can query the bucket keys endpoints to obtain S3 access and secret keys, then read, modify or delete objects in those buckets.

• Auf 6.0.4-2+deb13u11 aktualisieren

Path traversal in LXD btrfs storage driver allows arbitrary file deletion and write on host as root

Path traversal in the btrfs storage driver in Canonical LXD versions 4.0.2 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create instances in a project to delete arbitrary files on the host as root. On hosts whose root filesystem is btrfs, the client can also place attacker-controlled content at arbitrary host paths, leading to full host compromise. The client does this with a crafted subvolume path containing ../ sequences, sent in either of two ways: in the optimized_header.yaml of an optimized btrfs backup, or in the btrfs migration header sent by a malicious migration source

• Auf 6.0.4-2+deb13u1 aktualisieren

Path traversal via Btrfs optimized-backup subvolumes[].path enables root file/dir manipulation in LXD

Path traversal in the Btrfs storage driver (unpackVolume) in Canonical LXD on Linux allows an authenticated user with instance creation privileges to delete or replace arbitrary files and directories on the host filesystem as root via a crafted subvolumes[].path entry in backup/optimized_header.yaml during a btrfs optimized backup import.

• Auf 6.0.4-2+deb13u1 aktualisieren

UBUNTU-CVE-2026-81501

[Unknown description]

• Auf 6.0.4-2+deb13u10 aktualisieren

UBUNTU-CVE-2026-81500

[Unknown description]

• Auf 6.0.4-2+deb13u10 aktualisieren

UBUNTU-CVE-2026-81498

security update

• Auf 6.0.4-2+deb13u9 aktualisieren

UBUNTU-CVE-2026-81497

security update

• Auf 6.0.4-2+deb13u9 aktualisieren

UBUNTU-CVE-2026-81496

security update

• Auf 6.0.4-2+deb13u9 aktualisieren

UBUNTU-CVE-2026-81495

security update

• Auf 6.0.4-2+deb13u9 aktualisieren

UBUNTU-CVE-2026-81493

security update

• Auf 6.0.4-2+deb13u9 aktualisieren

Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root

Incus is a system container and virtual machine manager. Prior to version 7.3.0, a malicious image containing a `metadata.yaml` symlink pointing to an arbitrary host path allows an authenticated Incus user to read or overwrite any file on the host as root via the instance metadata API. The `exec-output` and `templates/` paths were patched in a prior release using `Lstat` rejection and `os.OpenRoot` confinement; `metadata.yaml` was not included in either patch and remains exploitable. Version 7.3.0 patches the issue.

• Auf 6.0.4-2+deb13u9 aktualisieren

Incus vulnerable to root RCE via image backup.yaml symlink

Incus is a system container and virtual machine manager. Prior to version 7.3.0, an unprivileged, project-confined Incus user (a non-admin TLS/RBAC identity with `can_create_images` and `can_create_instances`) can execute arbitrary code as root on the host. A crafted image ships `backup.yaml` as a symlink to a host file. When the root daemon writes the instance's backup file, it follows the symlink. Version 7.3.0 patches the issue.

• Auf 6.0.4-2+deb13u9 aktualisieren

Incus: Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

• Auf 6.0.4-2+deb13u9 aktualisieren

Incus has a project restriction bypass via instance migration config override

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migrating an instance to another cluster member, user-supplied configuration overrides (including security-critical keys like `security.privileged` and `raw.lxc`) are applied without any project restriction enforcement, allowing a restricted project user to escalate to a privileged container and escape to the host. Version 7.3.0 patches the issue.

• Auf 6.0.4-2+deb13u9 aktualisieren

Incus has an argument injection in storage volume block.create_options that leads to arbitrary command execution

Incus is a system container and virtual machine manager. Prior to version 7.3.0, improper validation of user-provided `block.create_options` in storage volume configuration leads to argument injection in the constructed filesystem creation command line. This allows a project-scoped user to inject arbitrary arguments into the binary executed as root. Version 7.3.0 patches the issue.

• Auf 6.0.4-2+deb13u9 aktualisieren