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CVE-2026-9640

LXD Snapshot Import Privilege Escalation Vulnerability

Published: Jun 26, 2026Updated: Jul 2, 2026 Sources: CVE List NVDCWE-863
7.2HIGH
NVD MITRE
EPSS Score
0.4%
Top 70.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-863

Affected Products

Canonical
commercial·GBaka canonical ltd.
LXDOn-prem
Operating Systems / linux-distro
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/canonical/lxd/security/advisories/GHSA-ppq7-4492-5552
github.com
https://github.com/canonical/lxd/pull/18301
github.com
https://github.com/canonical/lxd/pull/18303
github.com
and 1 more references View all →

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