CVE-2026-9640

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Source
https://cve.org/CVERecord?id=CVE-2026-9640
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9640.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-9640
Aliases
  • GHSA-ppq7-4492-5552
Downstream
Published
2026-06-26T15:50:38.453Z
Modified
2026-07-17T03:46:30.749638823Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
LXD Snapshot Import Privilege Escalation Vulnerability
Details

A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9640.json",
    "cna_assigner": "canonical"
}
References

Affected packages

Git / github.com/canonical/lxd

Affected ranges

Type
GIT
Repo
https://github.com/canonical/lxd
Events
Introduced
538ac3df036e4a8c0197d0f52d125be1b51879d0
Fixed
7b1f0b6acefa288398ead8dda48b046d7b2795a3
Introduced
761d134ceabd306f57acfb0ca51f59b03751a5b0
Fixed
c5184be310b13a8be5d9a5f286bfa1c0c286716e
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
85f897013ccdb0f8f44d434a3b655d2edcefcfae
Database specific 
{
    "cpe": "cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "4.12"
        },
        {
            "fixed": "5.0.7"
        },
        {
            "introduced": "5.21.0"
        },
        {
            "fixed": "5.21.5"
        },
        {
            "introduced": "6.0"
        },
        {
            "fixed": "6.9"
        }
    ]
}

Affected versions

lxd-4.*
lxd-4.12
lxd-4.13
lxd-4.14
lxd-4.15
lxd-4.16
lxd-4.17
lxd-4.18
lxd-4.19
lxd-4.20
lxd-4.21
lxd-4.22
lxd-4.23
lxd-4.24
lxd-5.*
lxd-5.0.0
lxd-5.0.1
lxd-5.0.2
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-5.3
lxd-5.4
lxd-5.5
lxd-5.6
lxd-5.7
lxd-5.8
lxd-5.9
lxd-6.*
lxd-6.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9640.json"