CVE-2026-63293Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
Updated under an hour ago ()
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It affects Canonical LXD. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-59
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- canonical
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Canonical LXD canonical:lxd (from the name) | from 4.0.0 before 4.0.12; from 5.0.0 before 5.0.8; from 5.21.0 before 5.21.6; from 6.0 before 6.10 | CNA record |
canonical lxd canonical:lxd | from 4.0.0 before 4.0.12 | NVD |
References
- https://github.com/canonical/lxd/security/advisories/GHSA-j825-cg34-5fr5vdb-entry, vendor-advisory, exploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.