CVE-2026-63293
Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 |
| Vendor | canonical |
| Product | lxd |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Canonical / LXD
4.0.0 < 4.0.12 5.0.0 < 5.0.8 5.21.0 < 5.21.6 6.0 < 6.10