CVE-2026-63294

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-63294
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63294.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63294
Aliases
  • GHSA-fv82-v4fj-mm4m
Downstream
Published
2026-08-12T19:57:07.898Z
Modified
2026-08-15T11:31:01.083655089Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Root RCE via image backup.yaml symlink
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63294.json",
    "cna_assigner": "canonical",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "6.0"
                },
                {
                    "fixed": "6.10"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/canonical/lxd

Affected ranges

Type
GIT
Repo
https://github.com/canonical/lxd
Events
Introduced
03aab09f5b5cbdada00c6539877dcf5932fcde98
Fixed
a55c9d0228552323d96cc330fb36f9471581c4ab
Introduced
1e1349e3cbf30c1b2ce74e531d4dd0fd52c45be1
Fixed
58b58151cfc3bd9fb0fedce26fcdd73a3e67bdb8
Introduced
761d134ceabd306f57acfb0ca51f59b03751a5b0
Fixed
c6146714d0cacd04b77598bac149f5db714834f6
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.0.12"
        },
        {
            "introduced": "5.0.0"
        },
        {
            "fixed": "5.0.8"
        },
        {
            "introduced": "5.21.0"
        },
        {
            "fixed": "5.21.6"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

lxd-4.*
lxd-4.0.0
lxd-4.0.1
lxd-4.0.11
lxd-4.0.2
lxd-4.0.3
lxd-4.0.4
lxd-4.0.5
lxd-4.0.6
lxd-4.0.7
lxd-4.0.8
lxd-4.0.9
lxd-5.*
lxd-5.0.0
lxd-5.0.1
lxd-5.0.2
lxd-5.0.7
lxd-5.1
lxd-5.10
lxd-5.11
lxd-5.12
lxd-5.13
lxd-5.14
lxd-5.15
lxd-5.16
lxd-5.17
lxd-5.2
lxd-5.21.5
lxd-5.3
lxd-5.4
lxd-5.5
lxd-5.6
lxd-5.7
lxd-5.8
lxd-5.9
Other
show

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63294.json"