Dashboard / CVE-2026-9640

CVE-2026-9640

HIGH
MEDIUM Priority: 0.05 BB Relevance: 60/100
Published: 2026-06-26 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
canonical lxd 4.12 – 5.0.7
canonical lxd 5.21.0 – 5.21.5
canonical lxd 6.0 – 6.9

References & Advisories (4)

Bug Bounty Relevance

60 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.63%
Raw Score 0.006320
Percentile 50.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00632
2026-10-28
0.00632

Intelligence Sources

nvd ref →

External Links