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    CVE-2026-63294

    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.

    Published:Aug 12, 2026
    Last Modified:Aug 13, 2026
    EPS:Aug 12, 2026
    EPSS Score:0.01016
    CVSS Score:9.9

    Affected Products

    Vendor
    Canonical
    Product
    Lxd

    Exploits

    No exploit reference

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    CVE-2026-63293 (CVSS 9.9) — A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations o…
    CVE-2026-63295 (CVSS 4.3) — An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass project-level containe…
    CVE-2026-63296 (CVSS 9.9) — An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restric…
    CVE-2026-63297 (CVSS 9.9) — An authorization bypass vulnerability in LXD due to a timing flaw during configuration merging allows an authe…
    CVE-2026-63298 (CVSS 9.9) — An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling a…
    CVE-2026-63299 (CVSS 9.9) — An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and vol…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High