CVE-2026-55621

HIGH
MEDIUM Priority: 0.03 BB Relevance: 65/100
Published: 2026-08-21 Modified: 2026-11-06 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

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

Description

Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. Version 7.2.0 patches the issue.

Affected Software (5)

VendorProductVersion
canonical lxd >= 4.12.0, < 5.0.7
canonical lxd >= 5.1.0, 5.21.5
canonical lxd >= 6.0.0, < 6.8.0
lxc incus < 7.2.0
lxc incus < 7.2.0

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.41%
Raw Score 0.004150
Percentile 36.4%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00415
2026-11-13
0.00415
2026-11-12
0.00415
2026-11-10
0.00415
2026-11-09
0.00415
2026-11-08
0.00415
2026-11-07
0.00415
2026-11-06
0.00415
2026-11-05
0.00340

Intelligence Sources

mitre ref →
nvd ref →